Going to be tough to get one at that price. Figure most people here are already into it with registration fees for more than that.
Try the namesilo marketplace
https://www.namesilo.com/register.php?rid=7a64929sfClick on marketplace then under type choose Expired Auction. There are many ending everyday with no bids, so you can get in for $1.00 + reg fees.
If you want one that is bitcoin related then it's probably going to cost you more.
If you want a short one it's probably going to cost you more.
-Dave