Hello everybody,
in the meantime, I came up with the following solution for handling the
Dummy ET 
and imagine a simple small holding jig from cardboard, much like a
Rotary spit for suckling pigs, the Dummy being the suckling pig.
Source: chefkoch.de
For this I will fill the
Dummy tube on both sides with
Styrofoam and insert a rod. And then I'll turn this spit slowly by hand, both when spraying with the Spray adhesive and during the subsequent dusting with flour, that's all.
