We've posted about a few fun iPhone cases in the past, including the Etch A Sketch iPhone case and the Polaroid iPhone decal. Since we've come across a few more fun cases, I collected them here, featuring the good, the cooky and the completely unpractical.

Recession iPhone Case from Case Mate

80s iPhone via Gizmodo

Gameboy Cover from iPWN.

Chocolate Bar Via Walyou.

Breakfast Pastry and Cheeseburger Sleeves from Barry's Farm

Domo Kun Sleeve Geeky Gadgets

Game Sleeves (when available from Rabbit Rampage

Gasket Case from id America

Retro Camera Sleeve from Crank

Monster Case via Fanboy

Tripod Case from XShot

gPod Case via GadgetSin

Calculator Case Tech Fever

Bottle Opener Case via The iPhone Guru

Fan Case Browse Tools

ArkHippo via Gadgetizer

iBlackboard via HardwareSphere

Custom and Artist Series Laser Engraved Cases from Grove

Cassette Tape Urban Outfitters

iRevolver via intomobile

Keyboard Case via Think Geek

Sushi and Cake from Strapya

Little Black Book from Pad and Quill

Some other design posts you might enjoy:

Geeky Gifts Guide v1.0.2. for the Gadgeteer
iPhone App for 3D Photos and Models: Trimensional
Hipstamatic Alphabet: Jason Hill Presents Hipstamat Ornate