Can anybody help me? What kitchen utensil is this? My ex-wife left it in the cupboard when she moved out and I can not for the the life of me figure out what it’s for. It vibrates all over so I assume it’s for some sort of mixing or baking, but I have SCOURED the Williams Sonoma website and keep coming up empty! So far I’ve been using it to beat my eggs, but it makes my whites go everywhere! HELP!!!