Superstar
When it comes to retro synths, it doesn't get more old school than the Music Modem. ThinkGeek has managed to cram all of the old modem noises, plus a few synthesizer sounds, into one package. While some people may be too young to remember the days of dial-up Internet, those who had to deal with it will no doubt remember the sounds associated with it.

The Music Modem harnesses those sounds and more with its three modes, five tones and eight notes. In addition to being able to bug your friends with the sound of Internet connections past, you can also make some pretty sweet synth tunes. The Music Modem also has AUX in and out ports so that you can jam loud and proud. ThinkGeek is selling the Music Modem for $29.99 and it's available now.