Boss released a number of different novelty carry bags over it's history.
One of the MBX-1 Miracle Box prizes was a pedal-sized MD-2 carry bag that was big enough to house a compact pedal. These were released with the Miracle Box Campaign in the early 00's.
Boss produced a small travel/tool bag, likely in the early 1990's. These were a dull blue and yellow and had a carry handle on the side.
One of the hardest to find pieces of Boss merch, the compact pedal backpacks are a very desirable Boss collectable. There is very little information on these available and we've only been able to secure two (both OD-3's).
OD-3 (Glossy, tacky finish. Included detachable shoulder straps.).
MD-2 (Matte finish, reward from the MBX-1 campaign).
HM-2 (Matte finish, released in the 80's, rarely seen online).