Potential answers for "Inventor's brainchild"

⭐⭐⭐⭐ HARDNOSED
⭐⭐⭐⭐ IDEA
⭐⭐ PATENT
⭐⭐ SNL
⭐⭐ WHIZKID
⭐⭐ IDEE
⭐⭐ HBOMB
⭐⭐ NRA
⭐⭐ CCC

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