I'd recommend starting with items that are low risk. Maybe something
that isn't too costly, just in case you would have to refund or provide
return shipping for a buyer. So if anything were to happen to it, such
as getting damaged in transit, getting...
What do you mean by "came from Amazon"? That it came in Amazon packaging
or that it came from an actual Amazon seller? I've seen some sellers
where they cross-post between eBay and Amazon. They can obtain Amazon
shipping materials for this.Or I know ...