This is a remix of the lovely Beer Holder by RobinC, changed to hold 5oz sample glasses (specifically to the Anchor Hocking Barbary sample glasses that my favorite festivals use). I've also updated it to include locking holes through all the arms so that you don't have to worry about the glasses shifting and knocking everything off center.

I added a small finger indent as well to help line up the arms in the appropriate spots for the locking holes.

Uses M3 bolts for attaching the handle, and for locking as well. The bolts for the locking holes can be stored by screwing them into the slots in the base when not in use.