I'm doing a Fill and Thrill promotion, because I have a con over Easter weekend. With each book purchased, the customer gets a plastic egg.
There are goodies in the egg.
I'm thinking a 10% next purchase coupon, redeemable online or immediately (not for the book they just bought but on the next one).
Candy in all of them.
There should be something else.
A token to claim a grab-bag in some of them?
A coupon for a free paperback or ebook?
A flash drive with all the InkySooky backlist?
One with my backlist?
What would you, con-going book-buyers want?