Could there be any more fitting a party food for our unofficial robot party week? The National Watermelon Promotion Board has a tutorial on "how to carve a robot watermelon." I'm sure this is where you can get super creative but their suggestions include hex bolts, hitch pin clips, wing nuts, spring nuts and more. Sounds like a trip to the hardware store is in order for your next robot party! Although this also sounds like something I could rope my husband into -- as how many party projects start with a trip to the hardware store, which is something he could totally get behind LOL. I original found and bookmarked this via the amazing site, Craft Gossip.