Dan Watson has designed a tiny breakout board for the Atmel ATtiny10. The board includes a bypass capacitor, a power LED and a user LED:
This breakout board is for the ATtiny10 microcontroller. The PCB is 0.25×0.325″ and uses 0.050″ header pins. The board could actually be made smaller, but I ran into the minimum PCB size limit on OSHPark. Despite the tiny size, I was able to include a 100nF bypass capacitor, power LED, and a user LED on pin PB1. That pin is also the clock pin for the programming interface, so it flashed when the board is being programmed.
ATtiny10 Mini Breakout Board – [Link]