Pretty stones - where can I buy?

[costagirl]

I want to buy some pretty stones/crystally type things, sort of marble size, to put in a jar as reward thingy. Can't think where might sell them?

I bought some square crystal stones from Morrisons to fill the bottom of a vase .They also had some nice blue smooth pebbles too.
About 99p a bag.

Excellent, thanks for that. I will try Morrisons.

They were in the homeware section where all the candles and stuff are.