Android and Donationware

I’ve just gone through the process of taking one my projects and adapting it to Android. It’s only about 15 minutes long and very arty, so I don’t want to charge for it. However, I would like to have a “donate” option. I realize that this will be much more successful if it is accessible within the game, but I’m wondering:

A: What is the most straightforward way to achieve this? (OpenIAB perhaps?)

B: Even if I go through Google’s billing procedures, is this going to violate any store rules?

Thanks in advance

You’ll have to specify donation amounts and basically just make a store using an IAP plugin (either third-party or your own). Google Play forces you to make and register your products ahead of time in the developer console site.

This means you need to have “suggested donation amounts” that people will use. Just make a store with products and call them donations instead.