I feel for you. I bet your tables are gorgeous. I would imagine it's not a fault of the tables, but simply that you haven't explored enough sales options. A one day sale doesn't seem like enough of a data-point to make a final decision from. Are you selling them on Etsy? Have you put links to them on here? Have you asked any local stores to carry them? Have you genuinely explored all sales avenues before you label it 'failure'? How much effort did you put into making the tables compared to how much effort you put into selling them? In my experience, we usually need to put in about as much or more effort into the selling as the making. Just my two-cents worth, forgive me if I'm overstepping. I wish you success!