Higher Tier Students               

This would be the kind of thing to appeal to a young person. It looks like a large injected piece of acrylic. I bet the colour is no more than a bit of sticky back plastic stuck on the surface of the guitar shape. Injection moulding is here
These little beauties may appeal to a child. They are injection blow moulded with coiled wire connecting the feet to the head. You put the CD's in the coils. The coils are probably made from mild steel which has been chrome plated. Look here for injection blow moulding . Look here for types of metal . Look here for finishes on metal . Type of plastic ABS?

Oh how cute!! Little creatures that have been made by injection moulding. It is the sort of thing you could give away with a fast food meal or if you bought a couple of CD's you could get one free. You could collect the whole set, how sweet*?!Injection moulding is here . Type of plastic polyethylene maybe, look here
What a novelty. a lot of this looks like it has been vacuum formed. It looks cheap and it could be a give away item. Made in the shape of a drinks can. Probably made out of HDPE look here for plastics, look here for vacuum forming.