Penn Jillette of Penn and Teller fame has patented a "Hydro-Therapeutic Stimulator", which uses a hot tub for stimulation.
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| Number | Title | Issue Date |
| 4314429 | Siding holder A device for supporting one end of a lap siding while an opposite end is being nailed during a siding installation one a house; the device including, in one design, a hook for hooking over a top edge of a siding already installed, and a hanger adjustably ... | 02/09/1982 |