I found mine under a small drill yesterday. It was the last half of the pottery wheel.
I am not going to try and finish the board at all. I will fill as many orders as I can and then play other games. My board is ridiculous. I am never going to get through 7 bundles of dynamite and 7 single sticks of dynamite in 7 days.
Some of the dynamite are in checker board fashion. In other words, in some cases I have to break a bundle of dynamite tile in order to get to a single dynamite stick. That single stick of dynamite in row 7 ( the last row) is surrounded by three bundles of dynamite. I have 2 occurrences of that.
If the boards don't start getting easier, I won't bother trying to finish any of them. I will just look at the board and walk away.