arnymate you can usually get the K & S tubing from model shops the type that sell RC models and train sets.
You say you are using upholstery foam to cover part of your puppet I find it hard to get the right thickness I have been toying with idea to buy a cheap Ironing board cover as they usually have thin foam under neath(about 4 to 6mm)
Thats ok, I'm a very on the fence type of person and without knowing all that went on it would be wrong to side with anyone.
Mark will be back just you see!!
Look at that pair of eccentric Brits holding there Oscars proudly in there hands, it must of been easy working out the right size bow tie as Nick has 3 Oscars back in good old Blighty!!
Lets spread the eccentricity around and get some more gongs (Oscars) for Britain!!