I've got two free Redbox rental codes for ya today. The first one is actually only for $0.50 off any movie rental, which isn't free, but it's better than nothing. Just use code WNMKHRHK before Aug. 15 and you should be set.
Next, you can get a free video game rental code by texting MAD to 727272. I got my code immediately and it expires on Aug. 5. I'm pretty sure this means I can now go play some video games and count it as working.