Activity of limpet

Ideas please!! We are thinking of having fish bowl centrepieces with either water pearls and lights or crystals and lights. Now trying to think of ideas of what to put on top of these? Any suggestions?

I saw some aqua beads at a wedding fair this weekend and wondered if anyone knew where I can buy them as I can't find anywhere online. Also is it cheaper to buy or hire the goldfish type bowls for table decorations? Thanks for your help ?

I saw some aqua beads at a wedding fair this weekend and wondered if anyone knew where I can buy them as I can't find anywhere online. Also is it cheaper to buy or hire the goldfish type bowls for table decorations? Thanks for your help