So as a good or bad example I'll fire away and recommend two strange films that were so surprisingly enjoyable and original in a way:
Death Race 2000 (1975)

This was really fun to watch. Sylvester Stallone as this total brute, David Carradine as a guy arbitrarily called "Frankenstein" and wearing a rubber mask for some reason, not as ridiculously much blood as in any Tarantino movie, and a pleasant happy go lucky dystopian vision. What can you want more? Cool cars too, all based on the same chassis I think.
Galaxina (1980)

This was also a surprise. I half expected the usual trash with some princess fighting against the evil forces of the universe or something, but this had really creative plot, with a man falling in love with an android and the resulting problems ("Oh man I hope she has a..."). Also great cheesy humor, for example a Mr. Spot with ears pointing downwards.
So I hope you guys will come up with some crazy suggestions.