I made a large kitchen trivet to put underneath my toaster oven:
Large Kitchen Trivet by ~audreydc1983 on deviantART
It turned out great!
Here is a picture of it in action:
Awesome, huh?! made this just going in rounds: 5 in red, then 1 tan, 1 red, 1 tan, then 2 red. I'm pretty sure that I crocheted this one with a J or K hook.