Gift thinking for 17 and 19 year elderly guys?

So a couple of my friends have there birthdays and I want to get them something small. The piece is I don't know what to get... I never really shop for guys, and when I do it's for my brothers. My brothers tell me what they want.

I don't know a whole lot give or take a few it boys. I hang out with tw cliques. One I have be friends since grade 6, and my new clique (who's birthdays are coming up) I have be friends with for a few years, but I don't know what to get them

Help?
a pebble and a condom

go figuire
Get them a payment card to...
An ice cream place like Cold Stone
OR
To their favorite place to shop for clothes

Guys are very unyielding to buy for :)
Answers:    Video games. Any Xbox 360 or PS3 game would work as long really. Or take them a gift card to a favorite store. And if you're really unsure, they offer prepaid "debit" gift cards at particular malls and supermarkets. They work as debit cards.
You mentioned that they were 17-19 yr old guys, I'm assuming they would be leaving for college soon, right?
You could also receive them some college essentials, like a care package. C:
Good luck!
what kind of things dose he like

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