I have too much Hunkydory stuff....it's beautiful but I never get around to using it....somehow, I think it takes away creativity as it is all done for you!
And I also had a job with those cars that are concertinaed at the sides and stand up on their own....they have layers of acetate where you place the elements......but the acetate seemed the wrong size.....and I did finish one but only by cutting, tweaking, resticking, fiddling.....maybe I was at fault (being too stupid) but I think the instructions were inadequate.