For reasons unclear to me, SHOXX is participating with various artists to release special lucky bags in celebration of the magazine's 25 year anniversary and New Year 2016.

Black Gene For the Next Scene, D, GOTCHAROCKA, GIGAMOUS (ギガマウス), and LIN (凛 -THE END OF CORRUPTION WORLD-) (along with several non-UCP-related bands) are participating. Each bag costs 4,200 yen, and contains items “worth 2~3 time the cost of the bag.” Orders are accepted from 2015-12-21 through 2016-01-20, via SHOXX Vol.276 or online order.