Anyware FOLD-3000W White USB Slim Foldable Waterproof Keyboard - Retail

It folds and takes any sort of shape you want.

Sometimes a key will get stuck, but all you have to do to fix it is just squeeze the side of the key to force the top part up.

Price, spillproof, dust proof.

Keys type on their own, quit working.

Cheap.

Junkshow! Has a huge airbubble under keys which makes typing a pain, and you have to fight each key to get it down straight.