Terry,
I never much cared for clear wood, acorn nuts, and tampions, except for the way you do them...this isn't the first time you posted pictures pictures of these guns and I have liked them every time...Very nice. Believe the pictures of your mortars are previous Kewpie winners are they not.
Now back to Oreo question,
That would be quit the cannon that put a golf ball through the neighbors wall...you sure aren't going to do it with a mortar.
At the Cut Bank Cannon Convention in August we are going to have a hole in one contest for Golf Ball mortars. The hole will be a Par three and just about as easy to ace. Want a challenge, try it.