Regular fabric duct tape can replace hemp, which plumbers use to seal threaded pipe joints and faucets.
For this small strip you need to break into thin strands which are then twisted into flagella that can spin at screwing any plumbing fittings, and they will successfully play the role of a reliable sealing gasket.
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TRAP FOR PAINT
When painting the ceiling, cornices, etc. paint with a paint brush sometimes drains on hand. This will help avoid simple cropped funnel from a plastic bottle, put on the brush.
THE OUTLET IN THE CARTRIDGE
In order not to keep the additional wiring to connect the auxiliary electrical appliances at work using portable lamps, enough cartridge "carrying" to install a homemade adaptor as shown...
