We recieved a very nice present recently which contained a multi-part miniature of Nessie, Scotlands favourite cryptid. As the individual parts would be easily lost (looking at the cats here) I mounted it onto a 50x100 mm tabletop base and used my experience to create water effects a long time ago for Uncharted Seas (RIP).
Basically, I used acrylic gel to form waves and ripples, painted it blue, brushed it with white for foaminess and gave it a gloss varnish finish. I am satisified with the result:
Thanks again to our kind benefactor!