The "duct tape" of all caulks
They call this stuff caulk, but I use it as a general purpose glue. It pretty much sticks anything to anything. It may not hold as strongly as epoxy, but for 90% of my attachment jobs it does the trick. Almost everything in my mobile illusions museum is adhered with Lexel. It sticks better than silicone sealant and is not as obnoxious to work with.
Used to stick everything to everything.
(This is a Cool Tools Favorite from 2006 — editors)