I haven't seen these before either, but i don't manage to get many new sets, :' (most of mine are someone else's cast offs from ebay!
Having said I'd never seen them before, I've just been sorting out some of the Playmobil I've been collecting lately and found a new oak tree that I'd got had them joining the different sized branches together I now have blue, red and yellow ones! ... I'm just off to tie up my tomato plants!
They are great for tomato plants - the plant in my pic is a chocolate tomato plant that we are growing
Chocolate tomatoes two of my favourite things together - I grow chocolate mint in my herb garden but I've never heard of chocolate tomatoes Elaine