You could always get a pile of cold ones in, and do the modelling at the same time!
BTW, haven't been to the Model Shop yet, but will tomorrow, Saturday, and check-out that tube for you.
OK, so where're the pics then?
Checked the micro tube - it should just about do, but might look a bit overscale; would look OK in '109 R6 gondolas, but not sure about in the wing of a 190. The others are great for 1/32nd for future reference. See if you can get a length of syringe tubing, that should do it.