There are lots of designs to choose from, each costing only 25L$! You can buy separate mugs or a fatpack for 250L$ - and with the fatpack you get a cute one-prim sculpted shabby mug rack for FREE, yay!
There are two types of mugs - with drinks, and just empty one-prim mugs for decorating purposes! You get both types with your purchase, wee! :)
The mugs are scripted with 'holding' and 'drinking' animations. They attach to right hand, but feel free to reattach them somewhere else, eg. forearm (to keep nails or rings on). Make a copy of the mug before doing so, just in case.
If you want to send the mugs as a gift to someone, just IM me! :) I'll try to list them on XStreet soon, so that the gifting is easier, but for now my stuff on XStreet is a total mess and I need to take care of that first ;)
TP to the shop and see the mugs in person!