I made this a couple days ago to have all my charging electronics in one place.  Made out of three miniature milk crates, 12 zip ties, a spare prismacolor marker, a photo frame stand, and a power strip; this badass charges my PSP, 3DS, and Android Tablet/eReader simultaneously.  It costs just marginally more than four dollars, assuming you already have the power strip.

Some notes I’ll like to add:

1.  The prismacolor marker is to keep the tablet from falling out of it’s crate.  A short dowel or another type of marker could be used similarly.  I just had the prismacolor handy.

2.  The photo frame holder is to hold the PSP.  I should get a better one.