Cuddly toy Aatxe or Mallyx (though getting him to glow would be hard) and a mug of holding, for large amounts of tea/hot chocolate (lavendar flavour!).
http://www.figureprints.com/ - That company has the right idea. I'd love to buy figurines that looked like my characters.
Generic npc figurines would be very fun as well, especially the ones that are already a minipet. I bought all the collector's editions for the art books so having some of the art in the form of figurines would be cool to me.
Figurines that look like my characters would be awesome, and don't forget my minipet! I am also surprised there isn't more support for plushies, hopefully that won't sway anet from them, I want a plushie melandru stalker.