Examples of drinking horns found on amazon
Examples of medieval/fantasy style drinking mugs on amazon
This is the same style as the Bride's favorite mug that she carries with her to most SCA events. Found on Etsy.
Many times, we can find "period-esque" items at local thrift stores. Especially drinking vessels and dishes which we call feast gear. This is our haul after a recent trip T or C!
medieval/renaissance style costumes on amazon
More medieval/rennaisance style costumes on amazon
Good themed costume source in the states.
If you are looking for something a bit more historical, this is one of our favorite places for viking garb and drinking horns. Lots of cool stuff and fast shipping (all the way from Sweden!)
Another source for items a bit closer to historical but a bit more pricey