Regular swings ...... Hanging from tree, swing set in park or backyard, etc.
NOT KINKY SEX SWINGS, Thanks!
Pic http://199.115.114.215/metartmoney.com/0420/03.jpg
From link
http://www.bonuserotic.com/nensi/nensi-03.html
Link set
http://www.bonuserotic.com/nensi/