Model Making courses - UK

I’m looking for a soft model making course in the UK. I’m in full time employment so would need to be a weekend or evening course.
I have found a few promising links online but seem to be more about set building.
I work in product design so would want it to be relevant to that i.e. Blue foam, card, clay surfacing, etc.
Essentially to build up skills, techniques and experience.

If there are any recommendations that would be great - online courses also considered