Reddit mentions of 3M General Purpose 45 Spray Adhesive, 10-1/4-Ounce, White

Pick N Pluck foam:
http://www.thepelicanstore.com/pick-n-pluck-foam-sets-15.aspx

3M adhesive spray:
https://www.amazon.com/3M-General-Purpose-45-Adhesive/dp/B000PCWRMC/ref=sr_1_2?ie=UTF8&qid=1496151269&sr=8-2&keywords=3m+adhesive+spray

Easy enough to DIY:
https://www.youtube.com/watch?v=kW20t41s824

Put the savings towards filling your new case with some good vino!

This: https://www.amazon.com/Red-Devil-0320-Steel-Super/dp/B001JYVDSE/

And this: https://www.amazon.com/3M-General-Purpose-45-Adhesive/dp/B000PCWRMC

He's not too big, so I'd try transparent thumb tacks. I've done that with my small bead sprites and it works well.

You could also mount it in a small frame or against poster board with spray adhesive and then hang that like you'd normally hang a frame/poster. By spray adhesive I mean something like this.

You could try a spray adhesive to glue it back together. It wouldn't be perfect, but it's worth a shot. I'd be super pissed too.... maybe wine will help.

Pitch Perfect for $12.99 plus Adhesive spray for $5.28 comes out to precisely $18.27.

Thanks for the contest.

Question though: A couple of the prices of items in my wishlist change, every single day. If they change tomorrow, do you want me to update it? (So that it's once again $18.27)

D Thanks again!

Spray on adhesive like this works really good. It's basically spray on rubber cement, but you get a nice smooth, even coat with no lumps.
Just make sure you only spray one surface or you'll have a permanent bond! If you have a glass shop handy, you might see if you can get a square of heavy plate glass from them to stick your sandpaper to. It'll be a perfectly flat surface and you can clean off excess glue easily. It'll last forever. They can even round over the edges so there no danger of getting cut.

3M General Purpose 45 Spray Adhesive, 10-1/4-Ounce, White https://www.amazon.com/dp/B000PCWRMC/ref=cm_sw_r_cp_api_i_FXbzDb11ESNXM

I’d spray both sides let it get tacky and push it back in place

Find specific spray adhesive for it, I know thats what a lot of people use to change the fabric on the ceiling or whatever inside the car.

This should probably work well enough https://smile.amazon.com/3M-General-Purpose-45-Adhesive/dp/B000PCWRMC/ref=sr_1_2?ie=UTF8&qid=1525435456&sr=8-2&keywords=spray+adhesive+for+foam&dpID=416ygJSLFrL&preST=_SY300_QL70_&dpSrc=srch

3M General Purpose 45 Spray Adhesive, 10-1/4-Ounce https://www.amazon.com/dp/B000PCWRMC/ref=cm_sw_r_cp_apa_wXkNAbM45BJXV

I could see cardboard being useful if you are going to make multiple shirts with the same design in one, possibly two or three, sessions. You can get some spray adhesive and get it to stick really well I think (haven't tried it, but have heard it works). Anyways, nice finished product!

They are likely using spray-on adhesive and require a pressure sprayer to remove.

https://www.amazon.com/3M-General-Purpose-45-Adhesive/dp/B000PCWRMC

In order of my personal preference (though any would do the job):

3M Super 77

3M Spray Mount

3M General Purpose 45

Scotch Photo Mount

Elmer's E455

Good start!

The multiple layers look like they're done well, the only thing I would recommend is spray adhesive. Not sure if you used it, or just held it down, but it will work wonders. You lines will be less fuzzy. I use this stuff, when I'm stenciling cotton or canvas.

3M General Purpose 45 Spray Adhesive

I would use an adhesive spray like this. Another good option could be a very thin layer of epoxy, but that may be a little too permanent.