It eats candles and spits out the remains. Feast gear is defined as anything you personally need to survive the evening atmospherically and in persona. The following checklist gives suggestions for feast gear, not only what to bring, but where to find medieval or medievalish items. Genuine medieval goblets would be metal - silver or gold in the case of nobles, or possibly pewter. In the current middle ages, with gentles lacking large land holdings to finance their tableware, silver-plate is popular and pottery very common and perfectly acceptable.
Most people tend to avoid glassware - it breaks.
Tankards follow the same rules, although they re more of a peasant and less of a noble choice. You ll probably need at least one per person, with a few extra for guests, breakages and serious drinking bouts. Craft markets are an excellent place for goblets. The Red Shed at the Waterfront has a pottery place with lovely large goblets. Homeshops such as Stuttafords stock the metal varieties, as do lots of junkshops.