MDF doesn't half smoke when you laser cut it. Maybe it was the type of wood we were using - an 8' x 4' sheet from Wickes costs about£6. Not the "proper" laser-able MDF, just regular (cheap) stuff from a home supplies store. Despite the smoke, it's certainly a cheaper way of trying out designs than carving everything out of acrylic at £4/A4 sheet.
Colleen was making a simple jewelry stand for necklaces. Although originally using MDF just to make a prototype to see how the finished result would look, a quick coat of black acrylic paint, and it didn't look too bad at all - in fact, a coat of PVA glue and a dusting of glitter and it might look quite nice as it is!
(the later revision was made slightly longer and with hooks to stop the necklaces slipping off the stand when in use)