A tall wooden pole placed upright into the ground and festooned with many long ribbons, maypoles are used for dances most commonly on May Day. Maypoles are easy to make, and were once a common springtime childhood activity when I was growing up. Happily, they seem to be common in Renaissance Faires and also making a comeback elsewhere.
Jack in the Green-
In England, May Day parades traditionally included a man dressed head to foot in garlands of flowers and leaves; now the Jack in the Green has been revived in parts of Britain. I saw this example of a Jack in the Green at a Texas renaissance fair (held yearly in April and May). While not part of a parade per se, there are various May Day activities at this and other fairs. Many Pagans associate ‘Jack’ with the Green Knight, the Green Man, Puck, and related gods of green nature.
The beginning of May is celebrated as the festival of Beltane by many Pagans and Druids who follow the Wheel of the Year. Considered to be the beginning of Celtic Summer, it is a happy time and when the veils between the worlds thin. People gather with offerings, thanks, prayers, and often maypoles or need-fires.