Here's a tee for the 25th Anniversary!
It's starring just Amy Rose...and brings you some NEW Neoclassic art to enjoy! This time, she has her hands clasped behind her back, and is looking somewhat shy. The background is salmon-pink checker squares with pieces of Amy line art in them. Notice the brighter pink 25th Anniversary logo at the bottom.
This shirt is all black, and in adults sizes, but if you look at the cut, it's for women. The sleeves are smaller & sewn on differently, and the middle area curves inward rather than being a rectangle like a 'general' tee. This is a Sega Shop online item in 2018 / 2019 and should be about 25 dollars. (It's a little high for a tee...but Amy-only items aren't that common)