I've also been playing with the microwave and dying wool with vinegar, water and food colouring. All good fun with my daughter:
This was our first attempt using a nice chunky wool, then came:
which was more of an adjustment of the knit love bonus yarn, a lovely mix of 65% Cashmere 35% Silk bravely microwaved to suit my taste.
This one was given away as part of the sock club swap.