I have found the *PERFECT* thing to keep glass and decorative vases etc. in place while also raising kittens: Weather Stripping.

Don't laugh, its true. Go to your local hardware store and buy a roll of the pliable (almost like a clay-like substance). All it takes is a tiny little ball of the weather stripping under your glass piece, and it will not budge. It will take a little muscle when you do need to remove it, but it will not leave any marks!

When Yoshi was a baby he knocked everything off the counters! I lost or repaired quite a few things until someone told me about this. Then all my porcelain pieces in the bathroom were "tacked" down, as well as everything on my kitchen counters, ever since then, no more accidents!

It really works!!!!