noun

a rare, unusual, or intriguing object.

they had such fun over the wonderful box of curios that Jack had sent from India

trinket,knick-knack,bibelot,ornament,bauble,gimcrack,gewgaw,antique,collector’s item,object of virtu,rarity,curiosity,objet,objet d’art,kickshaw,whatnot,dingle-dangle,doodah,doobry,tchotchke,tsatske,folderol,furbelow,whim-wham,bijou,gaud,bygone