Reddit mentions of Pet Nurser Bottles Kit, 2.2 oz, 2 Pk

No problem, glad to help anyone who wants to make the happiest furb they can! ^.^
 
As for what to do to bond? There are a couple things I can suggest, and it's easier than you'd think:

1. Most obvious - play with her! And I don't just mean let her bound about, I mean interact with her! Wrestle her with your hands, chase her around as she tries to hide under stuff or darts away from you, get low to the floor and crawl after her/let her crawl all over you... Ferrets crave playtime and attention, and especially since she is a solo ferret, you are going to be HER hooman-bean and she's probably just gonna end up seeing you as a very large ferret - so expect her to want lots of playtime with you as you're gonna be all the cute, adorable, little critter has for love and attention and so she's going to be relying on you for it! It's a responsibility, but it's nice. :3
   
2. While scruffing can be - and frequently is amongst us fur baby owners, is - a way of reprimand to train ferrets, it can also be used in bonding. When she's in a more 'mellow' state (i know it might seem like that's non-existent right now, but basically at times when she'll start "speed-bumping"), every now and then, pick her up, gently scruff, as in just enough to hold her so she kind of yawns in submission to relax, lay her across your lap/forearm, and gently rub her belly. Just a couple pets, then let her go off and play again. Do this a couple times a day. It helps because it shows that the scruff is as much out of love as it is reprimand, and them being in that 'vulnerable' state generally would make them tense and squirm, but after learning they can relax and trust you, the bond opens up even more. :)
   
3. Put some of your stinky clothes in her cage to sleep on/in! Seriously, go and run, work up a sweat in a workout, anything to get your musk and scent into some clothes, and instead of throwing them in a hamper, toss them into the ferrets cage instead. They have very sensitive noses and use them for everything from identifying what is edible to what smells like a potty to do their business in - so of course giving them something that so inherently smells like you to rest/relax/sleep in and on means anything that has your musk - especially you - is good!
   
4. Feeding! Even something as simple as having your ferret know it's you FEEDING them helps them bond. Again, she relys on you now for everything, and food is important to these little monsters! They eat lots, will stow away food and treats as it is instinctual to do so, so if their food bowl is empty/low, let them actually see you come in with their food/treats and they will know that this is the giant ferret who is taking care of them! And speaking of feeding...
   
5. Bottle feeding - when you can, either order them from amazon or go to a petshop, and pick these bottles up. Every once in a while, at night or around the time you want them to get used to going to bed (ferrets will acclimate and adjust to your schedule over time), just beat some raw egg up with a fork to mix the yolk and eggwhites, cradle the fur baby in your arms on their backs, and just slowly bottle feed them. Literally does what you think it would with a baby - brings them close, again, lying on back in vulnerable pose, the entire mentality of being fed (although they can't have raw egg all the time, think like 1 full raw egg a week or maybe 2 egg yolks, so think of it as a treat), and plus it's a TREAT! :D And since you're doing it at a time when they would be going to bed anyway (again, this is when they are older and have learned your schedule), they will get full tummies and potentially start dozing off in your arms. A ferret only sleeps/cuddles where it is comfortable, so if it's on you, you're set :3 And from sleeping we get to
   
6. Cleaning ears - now most ferrets HATE having their ears cleaned, and it can be a real hassle trying to get one to cooperate to do so. BUT, momma ferrets DO clean their kits ears, generally while they are sleeping, they just use their rough tongue to gently clean behind, the surface of front, and just barely inside ears. Pretty much, you're gonna imitate that. While fert is sleeping, wet q tip (in warm water!) and just gently brush behind the ear, surface of ear, and just little crevices that are visible (NEVER go in!).
    
   That's pretty much what I got/can think of right now, and everything i do with my own ferrets. As a side note, if she is a chewer and you do the bottle feeding thing, cut the rubber tip on bottle low and watch carefully. Swallowing rubber can be dangerous and cause blockage in ferrets. If you prefer, maybe a good, solid eye dropper made of metal or glass. Anywho, I hope this help you a little!
   

Use kitten formula, not cow milk.

Petlac Milk Powder For Kittens, 10.5-Ounce https://www.amazon.com/dp/B005OYJHJW/ref=cm_sw_r_cp_api_i_jF1LDbVYVZ6K6

Pet Nurser Bottles Kit, 2.2 oz, 2 Pk https://www.amazon.com/dp/B0002ATA6I/ref=cm_sw_r_cp_api_i_SF1LDb6GFSZSY

Purina Pro Plan Wet Kitten Food Variety Pack, FOCUS Kitten Favorites - (24) 3 oz. Cans https://www.amazon.com/dp/B07L1N6Q43/ref=cm_sw_r_cp_api_i_HE1LDb5K3A4AB

You need to feed them separately and continue to bottle feed them. They aren't fully weened until about 8 weeks. Only use wet foods if you are going to feed them, especially kitten formulated foods. If you feed them milk, it should be a kitten formula and done in a bottle if possible, that way you can measure out how much food each one is getting so no one feels they aren't getting enough and then fighting over it. That's why one cat is NOT a) fighting the other b) suckling on little bits because it's replication of suckling a teet c) expressing aggressive behavior.

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So get a few bottles for her to suckle on:

https://www.amazon.com/Pet-Nurser-Bottles-Kit-2-2/dp/B0002ATA6I/ref=sr_1_5?keywords=kitten+feeding+bottles&qid=1558462462&s=gateway&sr=8-5

Kitten formula with bottle: https://www.amazon.com/Kitten-Replacement-Bundle-Nursing-Bottle/dp/B077X3QBF7/ref=sr_1_1_sspa?keywords=kitten+feeding+bottles&qid=1558462518&s=gateway&sr=8-1-spons&psc=1

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Nova is probably more likely to go for kitten milk at 4 weeks and it may be her prefered method of feeding, don't worry about weening her too much, it's better for her to be a happy and healthy kitten than a hungry and angry kitten. If that means she drinks more milk than she eats, that's fine, just leave out some food for them to munch on here or there throughout the day for her to nibble on and hopefully eat. Maybe make a gruel and mix in the formula and wet foods to see if that will encourage weening, slowly removing milk as you go every week.