flower arrangement sales..

If you have get to work, you can have a flower shop and have high markups.
Can they also be sold on a selling table?

Retail, selling table, food stand, plopsy.

Sales table is the easiest. It allows you to set the price rank, and is really worth the efforts.

You can use the sales table to make a home based flower shop if you like. If placed outdoors, it works like on any lot. If placed indoor, you must use an Arch instead of a Door, or NPCs will not visit.