Diamond painting

At last night's gathering we were also given some craft kits comprising diamond painting a bookmark. Now I don't know if any of you have come across this, but basically the bookmark is marked with a pattern and a letter, it's also sticky and covered with protective plastic You also get little bags of coloured "diamonds", a pen, a soft wax tile plus a stylus. So you peel a bit of the cover back, stick your stylus in the wax tile so the stylus nib has a blob of wax in it, then pick up the correct coloured diamond and stick it on the corresponding letter on the bookmark. Think painting by numbers but with coloured diamonds. 
Not my sort of thing, but I was pleasantly surprised when I sat down and did it this morning. Quite calming.