help needed 11 year old twin boys

[applegate]

hi, any ideas i have no idea what boys this age like?!
i wondered about paper jamz guitars? they are my nephews so want to buy something nice but have 12 nieces nephews and godchildren so dont want to spend too much!
Any ideas i have dds so an a bit clueless about boys!

not very exciting but 10yr old ds2 (11 in jan) is alwasy happy with itunes cards or amazon cards.

failing that if they like reading he likes the cherub series, or darren shan books.

Skullcandy ear buds (earphones) if they have ipods/mp3 players.

oh just looked at the ear phones they look great thank you