Last May's pay-what-you-want Humble Indie Bundle made over a million dollars. This sequel, featuring Braid, Osmos, Machinarium, Cortex Command, and Revenge of the Titans, is well on its way to repeating that feat, earning over $500,000 in just the first 24 hours of availability.
You can see how the sales and contributions break down on the Humble Bundle website, featuring some interesting statistics such as total revenues, Mac/Windows/Linux spread (including average donation amounts) and the top contributors to the cause. Currently sitting at the top is Minecraft creator Markus Persson (a.k.a. Notch), with a $2,000 donation. Can you top him? Come on... it's for charity, and you can divide your donation between the developers and Child's Play as you see fit.
All the games are completely DRM-free and will work on any number of Macs, PCs, or Linux-enabled computers. Can you say "Christmas present"?