Door Swing Black. This simple Door Swing gives you the comfort of a swing with the freedom to move it anywhere in the house. With padded strapping for added comfort and easy to follow instructions, the Door Swing is the perfect addition for any home! Introduced in 2001, WhipSmart toys are geared toward couples looking to add sizzle to their sex lives, the swing is designed to be easy to set up and move into different positions. Whipsmart from X-Gen Products. This easy to use, fully adjustable harness uses any door to provide easy access to your partners’ most intimate areas. The swing requires no assembly, supports up to 200 pounds, and uses the highest quality materials and craftsmanship to provide an anti-gravity sex experience.