I've been asked by my husband's office for a cake.
Probably and half-sheet cake single layer.
Maybe with a tipi, edible image (I have an edible printer at home) and congrats to the team... (they've got a construction project for native americans..)
How to price it?
I price my hobby baking prices on local bakery prices. A 1/2 sheet in Canada may typically run $50 at a bakery, where a 1/2 sheet in podunk town, USA may cost $30. I try to stay competitive with bakeries....NOT walmart or grocery store prices.