There's also a thread called "AquaDuelist's Hangout Thread" that I apparently can't access. Not sure why, but I'll at least leave the name here. There's a Starmie on the banner, so I assume it's Pokemon related.
oh ok. Well, now that you've said "toga' one should show up in your inventory. posting"red solo cup" (orrp possibly just "red cup) in the Kitchen area will get you a cup. Again, check your inventor after posting.