You can't sign stackable items, and you can't sign a material. Other than that, it is pretty wide open.

If by "wide open", do you mean it's a crap shoot as to whether the signature sticks or not? If it's wearable equipment, then chances are really good the signature sticks. If it's consumable food, then chances seem to be low.

I've tried signing various non-stackable food products in the past, only to be disappointed by the lack of a signature on the final product.

Give him a pair of Bunny Balls.

Note: Requires grinding through lots of signing crystals, as the item does not have a good HQ rate.

Edited, Nov 4th 2009 9:03pm by Guppie

You can sign Love Chocolate

I'll figure it out. Just disappointed about the coffee. She drinks 2-3 pots of it a day RL so it seemed perfect

edit: No, she doesn't sleep much

Edited, Nov 4th 2009 9:42pm by Aluus

Hmm... well, Love Chocolate is easy and a fairly common signable gift. If you're looking for something different with a cute name to show your affection, perhaps Silken Smile or Silken Squeeze cakes. (Note: Non-stackable, but I have never tried to sign one. They are HQs, and also require Apkallu Eggs).

If she has a sense of humor, and is a Mithra... Boiled Tuna Head.