Based on a previous 5-day goal, it looks like the prize will be an Echo Sweet Shot Oven appliance. Since it's a prize, there's only one made available, unless the team will be offering this appliance in a future sale.
I did note the (mostly negative) feedback on the last 5-day goal about the appliance-as-a-prize, but it always helps to have some numbers, so I'll be adding a poll to this thread to gather more community feedback on this concept.
EDIT: The poll is live, and will close in 5 days. Votes are anonymous and the poll is multiple choice (you may vote for more than one response). If you are on a mobile device: please choose 'View Desktop Site' from your browser settings, or scroll to the bottom of the page and tap 'View Full Site' to be able to see and vote on the poll. Each participant is allowed to vote only once.