I think you should save the big ticket items for Christmas and keep on the roll with 18 things...candy..keychains...gum.. maybe a t-shirt that has 18 lips painted on it..18 1$ bills rolled up inside an inexpencive wallet or coin case with a chain on it....18 origami stars with sweet notations inside that he can unfold...I liked the 18 songs on a cd... and the 18$ gift card...
You have a great imagination! I would realy try for more guy type gifts... LOL
I did a quick search for you laugh
http://www.gifts.com/personality/search/2mohMr14aicp
Hope this helps
Oh and welcome to the forum smile