Add donation mod?

[Guest poynter]

Hi,

Another mod request I think but I suspect that this would be quite trivial to code if something does not currently exist.

I'm setting up a site for a charity and they wish for users to have the ability to add a "donation" to the end of a purchase. Has anyone seen this done? Would it need to be added as a "product" or would you just add it to the order total? It's going to need to show on the invoice so I suspect that it will need to be added as a product somehow.

Any advice appreciated :)

[Guest]

Just to add if anyone does have the solution for this I would also be very interested for my own charity shop, ideally a way for shoppers to add an optional donation at the final checkout stage, often our shoppers will round up their purchase to give us that little donation.