File this under gardening gear mostly found in the UK: traditional flowerpot brushes for cleaning compost and debris from plant pots.
The brushes are made from sturdy hardwoods with conical-shaped bristles of various fibers. For those in the US, we sourced one domestic option, but we think it might be worth it to pay for overseas shipping:
Above: Made by Scotland-based company Nutscene, the Pot Brush is made from bassine bristles with a pine handle; £10 from Hen & Hammock.
Above: The untreated beechwood Flowerpot Brushes are made of bahia, a type of still palm fiber fill, by Redecker in Germany. Available in two sizes, the small is £10 and the large is £15 from Objects of Use.