Any decent bag will do. The charm of the Q system is that if you wanted to, you could simply slip the lenses into your pockets and wear the camera - no bag required. I used to chuck them in small separate compartments in my laptop bag!
If it makes you feel any better, that's the case in Malaysia as well :) I know. I used to work for them (DSC World). It irked me to no end that we constantly had no budget for anything, and last year when we got handed a raft of other products, interest in Pentax and Ricoh inside the company...