Check out this site. It's a competition to create new, innovative games. Each one is made within one week by one person (all textures, sounds, etc.) People who visit the site can download them (all free) and rate them.
They're all very surreal and original that's I've tried. My favorite so far is "On a Rainy Day," a game where you control a tree made of hands. The objective is to help paper boats make it from one side of the window to the other. Rain will sink the boats as it hits them, so your tree has to hold umbrellas over it to stop them from getting knocked down. If you get boats across, the game awards you by dropping in additional umbrellas and hands for you to continue building your protective hand-tree-thing. The controls are a little inaccurate, but it's... very original.
Here's a screen:
They're all very surreal and original that's I've tried. My favorite so far is "On a Rainy Day," a game where you control a tree made of hands. The objective is to help paper boats make it from one side of the window to the other. Rain will sink the boats as it hits them, so your tree has to hold umbrellas over it to stop them from getting knocked down. If you get boats across, the game awards you by dropping in additional umbrellas and hands for you to continue building your protective hand-tree-thing. The controls are a little inaccurate, but it's... very original.
Here's a screen: