Another Band Name Game - Change a Letter, Ruin the Band.

Gee Gees
Sappy Mondays
Passive Attack
The Smithy
Boy Division/Toy Division
Spinal F a p (hmmmm)
Flayer (although this is more violent than the original so maybe not ruinous enough)/Player
Echo & The Funnymen
Mage/Sage Against the Machine
Pott the Hoople
Deaf/Read Kennedys
The Blaming Lips/The Flaming Dips/Tips
Godspeed You! Slack Emporer
Machine Fun F ellatio (not sure this one is ruinous either)
Spooky Booth (hmmmm)
Peck/Deck
Slur/Blub
The Failers
Fuzzc ocks
Fat Stevens
Chip
Fat Anderson
The Flash/Slash

The Donkees (Monkees)

The Wonkees
The Zonkees

Beastie Toys

Twenty One Pinots (a fairly extensive wine list)
Manic! At the Disco
Daft Gunk
Thirty Seconds To Mass

Food Fighters

Ice Pube

Peach Boys or Beach Toys