Reddit mentions of NEEWER Multi-function Spring Clamp Clip Holder Mount with Ball Head w/ standard 1/4" Screw for SLR, Digital SLR, Video cameras

Just a heads up, the Amazon link you posted doesn't ship to the US.

Here are a few options for US folk (I haven't tried either of these, just FYI so can't speak for quality)

NEEWER® Multi-function Spring Clamp Clip Holder Mount with Ball Head w/ standard 1/4" Screw for SLR, Digital SLR, Video cameras

SUPON Multi-function Tripod Camera Clip Clamp Flash Holder Mount with 360 Swivel Photography Ball-Head 1/4" Threaded Screw for Camera Tripod, SLR, DSLR, Video Cameras,Studio Backdrop Camera

Personally I recommend some lightstands and ballheads, if you have the space they are great and very portable.

I wouldn't recommend it. Like someone else said, they vibrate a little due to the motor inside.

could you use camera clamps or clips instead of balancing them?

something like this; https://www.amazon.co.uk/Neewer-Multi-Function-Spring-Holder-Camera-x/dp/B00AMXMV3O/ref=sr_1_12?ie=UTF8&qid=1484480134&sr=8-12&keywords=slr+camera+clamp

You're probably looking for something like this.

Also worth noting is how this the shelves are that you are attaching, since these clamps have a maximum thickness they can clamp onto without being unstable.

What schkolne said. 3rd option is these clamps with ball joints, that work even vertical (on sides of shelves/furniture.) https://www.amazon.com/gp/product/B00AMXMV3O/

I flip my bed up (no headboard). Went from worrying about 2m x 1m to eventually 2.4x2.4 ish moving stuff around. Easy to do in 2 mins once you figure out the routine. Even though I have the space, I ended up getting a steering wheel+pedals for racing games. Bought a HOTAS too but haven't used it yet. Games like DiRT Rally and iRacing are really fun. I wasn't even into simracing until VR came around. Lighthouses are needed for tracking, all the time, yes. The recommended roomscale size is assuming you have nothing in the way from floor to ceiling. The lighthouses will work in small spaces for sure.

I use these in my room, and whenever I bring my rig over to people's houses. Easy to just extend them from floor to ceiling. https://www.harborfreight.com/2-in-1-support-cargo-bar-66172.html.

Then I use these and just clip onto the bar https://www.amazon.com/gp/product/B00AMXMV3O/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

You have some options.

If you're ok with drilling some holes in the wall, it should have some mounting brackets for the lighthouses in the box.

A good howto with youtube video here:
https://www.vive.com/us/support/howto/720442.html

You can use cargo poles, or contractor poles for a more permanent installation, if you don't want to put holes in walls but don't want to take them up or down.

https://www.amazon.com/FastCap-Support-System-144-Inches-3HAND5/dp/B000067S12/

Then just find the right photography mounts to clamp to them. The lighthouses have regular 1/4" threading, so you can use basically any standard camera mount.

https://www.amazon.com/NEEWER%C2%AE-Multi-function-standard-Digital-cameras/dp/B00AMXMV3O/

I use these clamps - they rock and they're $10 each, so $20 total.

If you don't mind doing the room setup every time you move them, you could put them on flash stands if you weighted the base down properly and your floor doesn't move too much.

https://www.amazon.com/Neewer-Photography-Studio-Portrait-Lighting/dp/B00UWDD2D2/

For even more information I refer you to this thread:

https://www.reddit.com/r/Vive/comments/4f5axk/a_comprehensive_guide_on_lighthouse_mounting_so/?st=iveggc9h&sh=b55798ba

I have 2 bookshelves in opposite corners of my office and with my Vive I ended up going with 2 of these and clipping them to the top. I plan to do the same with the rift cameras: https://www.amazon.com/gp/product/B00AMXMV3O/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

I have this weird aversion to actually mounting them on the wall in case I change my mind in how I should set them up. Probably just me being ridiculous though.

This. I got 2 of these and they work like a dream.

I see you've come to the conclusion that tape isn't going to work!

If you really don't want to drill into the walls, instead of losing floor space with tripods (which also tend to have a wobble to them I find), these are a decent option too;

http://www.harborfreight.com/2-in-1-support-cargo-bar-66172.html (also called tension rods if you're googling elsewhere...)

And a couple of these too!

https://www.amazon.com/NEEWER%C2%AE-Multi-function-standard-Digital-cameras/dp/B00AMXMV3O/ref=sr_1_1?ie=UTF8&qid=1474226832&sr=8-1&keywords=camera+ball+clip

I'm not sure how well that config file thing would work. If the lighthouses move at all, you will get some messed up things happening. Like floating or being under the floor. It would be impossible to mount the lighthouses exactly after moving them. I am sure this is a good solution for those who dont move their lighthouses, but have to move furniture to switch between roomscale and seated. Doing the roomscale/seated setup doesn't take very long.

I have the permanent mounts in my bedroom. I use camera stands for mounting in the sitting room. There are a few options for this, as the holes for mounting, are the same size as standard camera mounts. If you have somewhere to attach them, these clamps work quite well. Or these gorillapods are handy too. You can leave the piece that clicks into place, attached to the lighthouses. So they literally take 1 second to remove.

I leave the wall mounting bracket, that come with the Vive, attached to the back of the lighthouses when I move them. So I just unscrew them from the wall. This seems safer to me, than rotating the entire lighthouse to remove it from the bracket. Less chance of dropping them. There is also a screw hole in the bottom of the lighthouse, where another mounting solution can be attached. This is where I attach the camera stands.

The lighthouses can be mounted upside down, and function perfectly.