Idea: Accumulation Box - A kind of monetary pass the parcel
A sells a solid gold box to B who has a diamond.
B puts his diamond in the box and resells it as golden box and diamond to C.
C adds a ruby to the box and resells it as Gold box containing diamond and ruby to D
D puts an emerald in the box and resells it as Gold box containing diamond, ruby and emerald.
Each person buys the box just for the purpose of increasing the value of the box and reselling it at a higher price.
And if you don't want to resell the box then you have a nice gold box full of jewels.
What makes me think this is a good idea?: Well it was inspired by the way people buy houses and fix them up just to resell them, hopefully, at a profit worth all that they've spent on fixing them up. I just wanted to reduce this idea to its essentials; you buy something, you increase its value and you resell it. Now you could buy a house and fix it up; you could buy a cheap object and nicely decorate it but all that takes a lot of effort and may not make you as much profit as you want. My idea however has two advantages a) All the components of the object have intrinsic value, gold box and precious contents so people will definitely want to buy them b) It is much easier to just add a jewel to a box than fix up a house.