Ideas on ceiling (not conventional)
On behalf of GB and all the others who brought up non-terminology and non-coffered ceiling topics, allow me to apologize. You see, there are people here that are concerned that projects asked about are done correctly and safely, they will often bring up things that weren't mentioned by the OP. Sometimes we will even argue with each other or make inside jokes, completely ignoring the OP while doing so. Codes? We don't need no stinkin codes. We will worry about that when we try to sell the non-compliant house. Perhaps, if you weren't concerned with codes and such, you should have asked in Interior Design, where the emphasis is more on appearance than the actual construction and codes and such. But don't count on not getting "off topic" responses there either. Again let me apologize for any one's having wasted your valuable time with freely offere and free advice.
Measure twice, cut once.
Look at the nail, not the hammer. Watch the fence, not the blade.
If you hook your thumb over your belt you won't hit it with the hammer or leave it layin on the saw table.