Demons at Walmart
They are a little pricey but a plastic bottle of Ketchup is $7.00 nowadays. We buy those models for our grandson, model paint and brushes just to make sure he gets started early. LOL His grandfather on his father's side owned an independent mechanic shop so he gets it from both sides. Due to our age we usually only buy 60's muscle car models but we showed him your post and he was kind of digging on the blue Demon. Now I guess we will have to bump up to the 70's models. We only have ourselves to blame! LOL