I got a pair of $10 flats on sale at Urban Outfitters this winter, thinking that a bland pair of shoes might come in handy sooner or later. Turns out they haven't and so I decided to DIY 'em up a little - and I do mean 'a little' as I've been down with a cold this past week and can't deal with anything remotely challenging.
I used such sophisticated tools as red shoe polish and masking tape and voila, a color-blocked/dipped (are you gagging yet?) pair of flats saw the light of day. Now, if I'll ever use them remains to be seen. But I had fun doing it. Kind of.