Peripheral maker Nyko is releasing an add-on lens for the DSi's 0.3 megapixel camera. The lens has a 8x and is detachable.
The US$25 price isn't outrageous at all, but surely you can look like a goober for less!
Nyko's DSi Zoom Case is A Little Bit On The Ridiculous Side (but I still want one) [Albotas]