Text: Failing a real hardwood blowpipe, you can buy the handsome quiver of stout rattan-bound bamboo with the poison darts (minus the poison), both authentic, and a shorter pipe of bamboo that does a perfectly serviceable job of blowing darts into your cork dartboard at home.
Entailment: Dart blowers can be made with hardwood or bamboo.
Contradiction: All darts come with complementary flasks of poison to dip them in.