The words in each set have a common connection, something that bonds all three of them in some way, shared features or characteristics...a manifestation of common attributes.
Can you find a Commonality?
= 1. TRAP - DOUBLE TEAM - CROSS BODY
= 2. SAMUEL COLT - GEORGE EASTMAN - CHARLES GOODYEAR
= 3. FOOT - TOAD - BAR
= 4. EPIC - ODE - SONNET
= 5. BASKETBALL - EMBROIDERY - HULA
= 6. EBONITE - VULCANITE - LATEX
= 7. MCDONALD'S - ST LOUIS - A FOOT
= 8. KING TUT - MR FREEZE - THE RIDDLER
= 9. SKIN THE CAT - IRON CROSS - THOMAS FLARE
= 10. A KISS - A FLOWER - A BOMB