Glueing Pebble Tiles to Shower Base

Hi Everyone,

I have had a look but I can't find a thread that really deals with this issue.

I have recently renovated my bathroom on a budget but it has turned out pretty good. The only thing left is to do something with my tired shower base. It is a fibreglass or polymer type moulded base and I was thinking of laying some pebble tiles down and grouting them. Has anyone ever done this and if so what adhesive was used? I am concerned that the pebbles won't adhere well enough to the base especially in the curved corners.

Thanks for any help.

Andrew