Eh, I tried felt-tip but I like colouring pencil for some reason - probably because it's easier to get different tones. There are a couple of Transformers pics in my gallery which I coloured by pen though, if you want to take a look.
Heh, I did it really quickly, in case you couldn't tell! The pic took a week to draw but an evening to colour, probably 2 hours' total colouring time. I knew most of the colours already but just had to look up a few details. Made sure to give Tri-Klops' tunic a different shade of green from Trap Jaw's face and Mer Man and I also used different shades of yellow for Evil Lyn's skin and Skeletor's face - I hope that shows up. In all honesty, the toughest thing was coming up with a shade of brown for the tea
Something more serious ... probably a pencil drawing of Gregory Peck as Atticus Finch from 'To Kill A Mockingbird'. I'm not rushing into it though, I'm incredibly busy with work and need my evenings to chill for the time being!