Looks like you're losing it Mats. Lack of imagination or coffee. I'm pretty sure one of your PAW pcb (logic probe) could fit in a stylus. What useful electronic device could you make fit in a stylus? Maybe a thermometer, pulse meter or led blinky thing.
first off Im not a programmer but I did stay at a Holiday Inn last night. :p
Ok it looks like the files you're looking for are not in the right directory. I always start avrdude from the directory that the files are in. Just make sure that the avrdude directory is in your system path.
It will reflow all the components. So you better make sure that all the components can handle the heat. Like speakers, vibraters, connectors or you'll have to remove those components first and then reflow.