T-shirts for Musicians!

Red Dog Music

Red Dog Music is a musical instrument retailer based in Edinburgh, UK. We are looking for 4 striking, original limited edition T-shirts to sell / give to our customers. We sell guitars, amps, keyboards and recording equipment (no classical / orchestral instruments) and have quite a quirky, “fun” and friendly brand image. We are looking for designs that would appeal to customers who like making rock and roll or dance music. Our company colours are predominantly red, black and white, so we’d want to stick to these.
More info about the company here: http://www.reddogmusic.co.uk/info/About-Us.html

Our target audience are all musicians and music producers, interested in a wide range of styles (rock, indie, electronica etc.), generally aged between 18-30 and predominantly male.

Fundamentally we are looking for quirky, creative designs that will appeal to music makers. All designs must:-

-Prominently feature the Red Dog as per attached logo (sorry I don't have a vector version!)
-Feature musical instruments and equipment etc. (though not musical symbols / staves etc. - too classical and tacky!)
-Only use the colours black, white and red (or just black and red)
-Be printable on a red or black T-shirt
-Include the text "Red Dog Music" (no other text) - we are moving towards using Cooper Black font, so this or a variant of this would be good
-Preferably 4 different designs, linked in some way (a series) [however, if a single design is good enough, we may award the full $150 for only one)

We want a copy of the original project file (with all layers).