I just came across a business in the United States that rents out fine china for events ranging from wedding to afternoon teas, right through to pig roasts. The owners have built up a collection of thousands of pieces and are now capitalising on it. This seems like a pretty limited market to me, but I could be completely wrong. Maybe there’s an opportunity for someone here in the UK to do something similar. Perhaps there’s a bigger market to be had in renting out antique furniture for events – either private or commercial.
If this interests you, I’d suggest researching the market and then forming an alliance with an established antique furniture dealer. They may welcome the opportunity to make some money from their slow moving stock.