Which Critter Ordered Escargot?

Found these cracked snail shells on my back deck today.  They were slightly more scattered than they appear here for purposes of getting them all into the shot.  I thought it might be a possum or raccoon, but my husband thinks the raccoon was probably the lucky diner.  Hope he enjoyed his delicacy and I hope this fits the Mono Monday challenge of "Mysterious".  Do you see the pareidolia?  Please click on the link below to help fund mammograms for those who cannot afford to pay.  It will cost you nothing but the time it takes to click https://thebreastcancersite.greatergood.com/clicktogive/bcs/home  Thanks to sk for hosting....