Obstacle safety device

Occupant propelled rotary conveyor

Occupant propelled roundabout

Occupant-propelled round about

Octagonal trampoline

Odor-proof disaster pouch

Odor-proof sealable container for bodily remains

Office chair with occasional exercise capability

Office seating with activity features

Offset rotatable handle members for exercising apparatus

One leg exerciser

One piece adjustable body support for a casket

One piece puffing assemblies for burial casket cap dish assembli

Operator controlled variable force exercising machine

Opposed rebounding exercise device

Optical illusion chamber

Optical illusion device for concealing an object, animal or the

Optical illusion-producing rotating device

Optical illusion-producing rotating toy

Optical toys for reversing sighted images