Old Android Tablet or Phone (Ensbury Park)

Hi. I am after a redundant Android tablet or phone. If you have something in the drawer that got a bit slow it would be absolutely perfect. I need it for a fundraising app that I will be running as I am a fundraiser for a local lottery. I need Android because the software we run only works on Android. If you have something slow, I can always back up your pictures for you and format it so that it is completely blank before taking it. Anything considered, it does not have to be fast.