Not really a pretty wish list entry, but oh so useful!
I found these at Digital Camera Warehouse, but I reckon you could find these ones (Micnova) or similar in almost any serious camera shop. Check ’em out if you’re getting into digital editing of your images and would like to colour correct your images quickly and easily (and get better skin tones in the process).
Rosalind - They are great, I have one card with all 3 colours on it!