Abstract: An on-genital erection device for inducing and maintaining the human sexuality are proposed. The on-genital erection device includes an essentially cylindrical elastomeric sleeve surrounding the pre-erection penis. The elastomeric sleeve includes self-sealing air-ports for engaging with an air pump thus forming an expandable and suctioning air tight enclosure of the penis causing its erection. The elastomeric wall can be made of a laminate of at least two layers Li, i=1, 2, . . , M. Each Li includes a surface relief pattern forming a surface relief pattern set that in turn defines a plurality of air paths PTj wherein at least one air path PTk is communicatively connected with the penis surface. Thus, after the plurality of air paths PTj get engaged through their respective air-ports with an external multi-port air pumping device, the desired expandable and suctioning enclosure is formed.

Abstract: A compact stance guide is disclosed to help the user achieve and hold a number of stances so that the holding of each stance provides a corresponding health benefit. The compact stance guide includes a foot engaging device, a body engaging device and a framing structure connected to the foot engaging device and the body engaging device. At least part of the foot engaging device, the body engaging device or the framing structure are objects in pre-existence and made for another purpose hence the thus formed stance guide becomes lower in cost and perceptually more compact in size. In a specific embodiment, the compact stance guide includes a separate feet board, two elbow-engaging members and an extensible balancing bar. The extensible balancing bar has two ends for engaging two opposing vertical surfaces of a preexisting object for support.