Thanks to Eric S. for sharing his DIY view finder mount. For real running and gunning, it's quite a pain in the a$$ having an LCD Viewfinder fall off so easily. Some inexpensive DSLR LCD ViewFinders use a metal sticky frame that allows the magnets of the view finder to stay in place. The most common problem with these are when the adhesive of the metal frame comes off with too much time in the sun. Once that metal frame is off, you'll be stuck without a way to mount your view finder for the rest of the shoot.
On this site people have shared ways to use a high quality Glass LCD Protector and permanently fixing the LCD ViewFinder. Epoxy is a good choice. Curious if there's one that would be a close fit to a Canon 60D... It's an excellent idea on providing a super solid hold while still allowing for a fast way on and a fast way off the camera. For those who aren't familiar with making a DIY LCD Viewfinder Quick Release, this is a look at the final build using information from this article. http://cheesycam.com/new-glass-lcd-protector-canon-nikon/