weird favor question

ok so my favor is personalized cookbooks. after i ordered 90 of them, i still saw a few mistakes, nothing huge but a few of the typos are specifically in the recipes which some of my guests contributed so i am going to order more favors just enough for those guests (cuz im not ordering 90 more and they are such little errors anywya). so basically i wont know which cookbook the guest who contributed will get so i thought of doing this...make a special note on those cookbooks for those who contributed (it would be like 10 people) and so that ensures that they will get those books.

does that work? or do you suggest something else?