Mood stuff was the shite that used to fall out of Christmas crackers when I was a child. Mood rings, mood fish, mood this that and the other. Mood pens smacks of cheap give aways with teenage girl magazines. It conjures thoughts to me of a cheap, novelty pen that will end up at the back of the drawer where you put all that other stuff you don't know what to do with. Just my opinion
Stick with Mystic. Or Chameleon. Or Rainbow. Or Chromatophoric. Oooh, I like that one. "Does any one else here have a chromatophoric pen? No I thought not - they are very exclusive you know. Much more upmarket than that mood pen my daughter was picking her nose with the other day"
Sorry Glen - I got carried away. I think I'm trying to vote no.