[header] How to make watermelon jello shots [title] Using a juicer, juice the limes. [step] Let the juice drop through a sieve into a bowl so that you can catch the seeds easily. [title] Reserve the juice for another use. 
[title] Turn the lime rinds inside out. [title] Find the membrane that connects the pith to the rind and pull on it to separate the pith from the rest of the lime, using a paring knife if needed.