1) Anything odd or fanciful 2) Caprice 3) Capriciousness 4) Fanciful touch 5) Idea 6) My wish is fanciful 7) Notion 8) Odd idea 9) Quaint humor 10) Thought 11) Whim 12) Whimsey 1) Arbitrariness 2) Caprice 3) Dream 4) Flightiness 5) Whimsey 6) Whimsicality 
• (n.) A whim; a freak; a capricious notion, a fanciful or odd conceit. • (n.) A whim. • (n.) A whimsey.
Whim'sy noun A whimsey. 
see Frigger