Apparel retailers Heroes & Villains and Atsuko are releasing a number of Godzilla t-shirts, long sleeve shirts, and hoodies. Heroes & Villains' apparel features three different styles of t-shirts, two long sleeve shirts and a hoodie, all come in sizes S to XXL, are 100% cotton, some are two sided, and retail from $30 up to $70. Atsuko's apparel feature six styles of t-shirts and four styles of long sleeve shirts, all come in sizes S to XXL, are 100% cotton, some are two sided, and retail for $28 for the t-shirts and $40 for the long sleeve shirts. All can be ordered now.
(Note: we can't vouch for the quality on these.)