In a bowl, add the boiling water to the gelatin and stir until the gelatin is fully dissolved. Transfer the gelatin to a blender. Add the strawberries and cold water and blend until liquefied. Refrigerate until thickened. Skim off any foam that has risen to the top of the gelatin mixture and stir to evenly distribute the strawberry puree. Spoon into the lime rind halves. Refrigerate until firm. Carefully halve the gelatin-filled lime rinds again. Sprinkle with the seeds and serve.
Reprinted with permission from Hello, Jell-O!: 50+ Inventive Recipes for Gelatin Treats and Jiggly Sweets. Copyright (c) 2012 by Victoria Belanger. Published by Ten Speed Press, an imprint of the Crown Publishing Group, Berkeley, CA.