Madesmart Drawer Organizer 4-Comp

My first granite tray out of the box looked exactly like the photo online. Moments later I put the tray on the surface of a flat table, only to see it wobbles if I touched the ends. Not a small wobble that could be unnoticed and easily forgivable for an inexpensive tray that someone simply puts stuff in to hold and organize. It's a noticeable wobble! So, Amazon/madesmart sent me another tray free of charge. And yes... the 2nd tray also wobbles just like the 1st. What to do? What to do about a plastic tray that wobbles? Well I could put a piece of foam or something soft below it, but then it doesn't fit my tiny desk drawer. Yet, it IS a pretty cool looking tray, and the rubber grip really holds things inside of it. The wobble factor is a big "ouch" though for this simple plastic tray. Why am I the only one to have noticed i? Maybe people just throw stuff in it and noticed but didn't comment on the wobble? Or, maybe I received the only 2 wobbly trays from madesmart? Highly doubtful. I contacted madesmart about this and I will change my review once/if I get a response. Maybe I should just buy trays in person @ Target or BB & B like a normal person? Just be mindful of this unexpected thing once you receive your tray. It's still a cool tray in the end ;)