You can make a BlinkM from an attiny85 microprocessor.
Simply look at the schematics from here and program the Attiny85 with the code from the ReflashBlinkM for Windows and look for the appropriate hex file there.
The fuse bytes should be: lfuse:0xE2: hfuse:0xDF
Take care when making your placement of the components on the board as using a DIP package means it will conflict with the arduino processor if you are not carefull.
Otherwise its all rather easy.
If you are looking for other arduino projects look here.
Other attiny85 projects to make RGB leds blink.
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