Use singular words
https://fourleafclover.com/brown-lucky-teddy-bear-with-a-four-leaf-clover
https://fourleafclover.com/shamrock_3_leaf_clover_gold_charm_necklace
https://fourleafclover.com/mahogany-frame-with-a-genuine-shamrock-and-irish-blessing
...
https://fourleafclover.com/personalized_four-leaf_clover_mahogany_frame
...
https://fourleafclover.com/four_leaf_clover_good_luck_pocket_token
...
https://fourleafclover.com/5-leaf-clover-good-luck-pocket_token
https://fourleafclover.com/5-leaf-clover-brown-lucky-teddy-bear