tickle somebody's fancy
catch somebody's fancy
strike somebody's fancy
take somebody's fancy

If it strikes your fancy, you can find rules for all variations of the game throughout the Internet.

He sought fresh ideas and new faces to strike his fancy.

It was a stranger's room, and Philip saw nothing that struck his fancy.

I saw you had all the qualities that would strike Harold's fancy.

The girls knew no limits either, simply buying whatever struck their fancy.

If any of these items strike your fancy, make a note.

Once in office, the Congressman took up causes that struck his fancy.

One of those questions, at least had struck his fancy.

And when someone invented the poison that struck their fancy.

You're free to pursue any investigations that strike your fancy.