Hey, that's not bad. What program are you using?
I could easily make a clip with any number of pivots. I think something like what you have made would work fine. Ikea's website says max weight per shelf is 8 lbs. I think at some point a clip like this could cause the glass to fail if there is too much weight. I'll definitely look at making a "2 up" clip. 1 up, and 1 down survived the night.