Thankfully, those aren't too difficult to reproduce! One just needs to reproduce the same low tack, pressure-sensitive adhesive that's on the back of something like Post-It Notes! That was an accidental invention, you know.

[He almost assuredly DOES know, but Huey is excited about it all the same. To serendipitously recreate something as universal as that, in a world that doesn't yet have them! He could be the next Alexander Fleming!]