Not much 80s candy refrenced in that book, however arcade games are a major part of the book,

also here is the songs mentioned in the book:

http://castleanorak.com/ready-player-one-soundtrack/

another gift idea

http://www.amazon.com/TV-Games-03564-Atari-Game/dp/B0028RZ7O2/ref=sr_1_2?ie=UTF8&qid=1387031243&sr=8-2&keywords=pacman+arcade

2112 is an excellent album that the book revolved around at some points, that is what I would give as well as the atari game and maybe a hard cover of the book?

it is up to your imagination, I suggest getting a copy for yourself and reading it because it is a very fun book!

^{^} that would be a cool thing to add to the gift as well, they reference atari a lot in the book!