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Electric Toothbrush Head Drip Stand
A 106 x 32 x 34 mm stand that holds four spare electric toothbrush heads upright in tapered seats (about 10 mm at the bottom, 18 mm at the top), so stems of different sizes all sit in it. Water drips into a separate cell under each head, and a 16 x 17 mm window at the front of each cell lets you wipe it out, so heads don't sit in standing water.
Safety Razor And Shave Brush Stand
A countertop wet-shaving stand that hangs a safety razor and a shave brush bristles-down over a 96 x 56 mm drip tray, so both dry properly and the water lands in the tray instead of on the vanity. The razor fork takes handles from 9–20 mm and catches any head wider than ~30 mm; the brush fork tapers 38 mm down to 24 mm so it wedges on almost any handle, with the razor hook at 128 mm and the brush hook at 112 mm above the tray. Two 4.5 mm holes at 52 mm centres let you screw it to a wall or cabinet side with #8 (4.2 mm) screws instead.