sticky fingers

all fingers and thumbs

Of a person, clumsy or awkward.

burn one's fingers

To harm oneself; to suffer consequences of one's actions.

come to a sticky end

To die unpleasantly due to one's actions.

get one's fingers burnt

To suffer relatively minor, adversive, and unexpected harm.

green fingers

A seemingly natural gardening ability.

have one's fingers in many pies

To be involved in many, or too many, different things.

in the snap of one's fingers

In a snap.

keep one's fingers crossed

To hope for the best, to show support.