Here's what the $85,000 penny looks like:
It's a copper penny from 1943. If you have this penny, congratulations...you are now $85,000 richer.
All pennies were cast in stainless steel that year, but some copper versions managed to sneak through by mistake. One of these pennies reportedly sold at auction in 2010 for $1.7 million. Appraisers estimate that a 1943 copper penny in average condition would bring in $60,000 at auction while mint condition would garner $85,000. [Source]
The odds of having one...or finding one...are pretty low, BUT it would still be worth checking your piggy bank just to be on the safe side :)