There have been more $0.10 sales in the Play Store as of late, but most of them are not available in the US. Today there are three top apps and games on sale for this low, low price, and two of them are valid in the US. Available in most markets (including the US) are League of Stickman Zombie and Lost Journey. The non-US sale is for music app djay2.
We've seen the dreamy puzzler Lost Journey drop to $0.10 before and it was quite popular. In this game, you make your way through levels by flipping them upside down and inside out. It's usually $0.99, but even with the $0.10 sale there are still some small IAPs left. League of Stickman Zombie is a much less subtle gaming experience. This one is a 2D hack-and-slash with a variety of stickman-like characters. It's down to $0.10 from a buck, but there are still in-app purchases up to $99.
The discount on djay 2 is more substantial. This music editing app is usually $2.99, but in much of the world (not the US), it's down to $0.10 today. This app lets you drop music tracks into virtual turntables and create your own mixes with realistic DJ controls. There's also support for Spotify built-in. All three sales will be gone in a day or two, so don't think it over too long.