Ask it ten times to make list of 20-30 random words

This is true on ootb models but not the universal rule. You could adjust the temperature all the way up and get something way more random, probably to the point of incoherence.

The trick is balancing that with keeping the model doing something useful. If you're clever you could leverage /dev/random or similar as a tool to manually inject randomness while keeping the result deterministic.