Notes,

The piece you need is the sort of thing that a 3d printer could make easily. Many people have 3d printers these days.
There are even places online where people will make items for a fee. But first I'd start by asking your audiences if
anybody has a 3d printer. Chances are that somebody you know has one and would be delighted to make the part you need.



Here's a google link to some people in florida who make 3d printed parts:

3D printing services in Florida

If you have a dial caliper or micrometer that will enable you to make precise measurements of the part so you can send
them a drawing of what you want, I think that should be enough information for them to duplicate the part. If you have
experience in 3d modelling and can send them a model of the part, all the better.