I made mdf Christmas trees as a fundraiser for our special needs school. 

They were up to 25cm tall (depending on the number of names) and took up to 30 min each to cut.
I put a red ribbon on them. They looked amazing when packaged against a red card.

Honestly it was a very slow, and at times frustraing, process and not one I will likely repeat, except as gifts. But I learned a lot, if that counts.
We had a very hot day and I had the window open for extra ventilation (in addition to the purifier). The M1 would not cut across the whole sheet evenly. I got 4 clean cuts the whole day. I came back the next day, which was cooler, and it was fine.

I designed the file myself in Adobe Illustrator.