It's no secret that Apple's products have spawned a veritable cottage industry of Kickstarted third-party accessory design, so it was only a matter of time before designers started looking to design accessories for accessories. Hence, "Tembo Trunks," a set of injected-molded silicone earbud cones.

Industrial designer Scott Norrie shares his inspiration in his Kickstarter video:

The product, in brief:An ancient method of amplification with a modern twist. Using Horn Acoustics, Tembo Trunks amplify the music from your iPod's earbuds to 80dB of clarity-enhanced Stereo Sound (3x the sound). The volume from Tembo Trunks is sufficient for lots of situations. Don't expect to bust an eardrum or feel the ground shake when you're playing your music—that's kinda the point.

Tembo Trunks are 100% Waterproof, Shockproof, and Dustproof. With no moving parts or electronic components to fail on you, Tembo Trunks will keep working whenever and wherever you're sharing your tunes... the perfect travel companion. Tembo Trunks don't use batteries or drain power like external speakers or docking stations. This means that you can play music for longer. By using Tembo Trunks you will get much more battery life from your device than you would from your internal speaker (with the added benefit of amplified, clearer, stereo sound).

We don't claim to have designed the greenest product ever, but as far as sustainability goes we believe Tembo Trunks are a better alternative to regular speakers.

While some may question the audio fidelity or need for a new variation on portable speakers, "Tembo Trunks" clearly have a niche appeal: Mike and Scott have met their modest $10,000 goal many times over.

What's more, they've posted a handful of (unembeddable) follow-up videos, which are definitely worth a couple minutes of your time... even if you're not planning on purchasing a pair.