Flipping coins is fun.
Here is an example output:
Generating 1,000,000 coinflips...
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Attempt #0: HT (1 times -- 1/2 chance)
Attempt #1: HHT (2 times -- 1/4 chance)
Attempt #6: HHHT (3 times -- 1/8 chance)
Attempt #13: HHHHHHHHT (8 times -- 1/256 chance)
Attempt #251: HHHHHHHHHT (9 times -- 1/512 chance)
Attempt #3,018: HHHHHHHHHHHHHT (13 times -- 1/8192 chance)
Attempt #26,795: HHHHHHHHHHHHHHT (14 times -- 1/16384 chance)
Attempt #57,435: HHHHHHHHHHHHHHHT (15 times -- 1/32768 chance)
Attempt #117,460: HHHHHHHHHHHHHHHHT (16 times -- 1/65536 chance)
Attempt #168,866: HHHHHHHHHHHHHHHHHHHHHT (21 times -- 1/2097152 chance)
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Highest score from 1,000,000 rounds is 21