What is the best gift idea to get a guy in his early 20s?

Guys in their 20s have different personalities and like different things. (what one likes, another may dislike)

I'd say do a bit of digging. Find out the hobbies of this person, if he's crazy about a football team - get him Merchandise for it. If he's into music, get the latest album of his favourite artist. If he's into planes, get him flying lesson vouchers.. etc. etc.

If you are looking for something very different, try a pendant or a keychain from etanro.com, these people make unique stuff, it is a goodluck keychain, with your boyfriends name, and any other message like "I love you" or "always us", written on a single grain of rice. Just mail them your boyfriend's birthdate on the email address and they will even tell you his lucky colour and make a keychain in that colour. go to http://etanro.com for Rice Keychain. If you cannot find the rice keychain link. just buy a pendant and mail them that you want a keychain and they will be able to do it, I know because I did that for my girlfriend