This is a giant glass mug. Just how big is it? See the hand gripping the handle! It's huge! You could probably get half a gallon of liquid into that...but why would you want to? It would either warm up or go flat by the time anyone drank it all. It could be some large, novelty type display item, maybe. Notice the shape though, it is
obviously shaped as a beer mug. You don't have to put beer in it, it's just that the drink determined the shape of the glass in ancient times so...anything that's shaped that way today falls under the category. Unsurprisingly, this is found at Spencers Gifts. (It has a lot of beer related items in various genres for whatever reason)
The theme here is "Green Hill Zone" from Sonic 1, but they add the neo-classic Tails re-draw to the front. Notice how the trees, ground & lifts are all pixelated, just like the 16 bit zone. The logo is nice & large, and the zone graphics go all the way around. It's clearly well designed & thought out. Certainly, the large size and odd nature of this will make it stand out in any collection...if there's room for it.