Answer:
An art-form and its colourful result.
These are the bumpy parts of your digits
Sometimes it's silver but also gold. Printed on paper it's a treasure to hold. What is it?
They can be long or short; they can be grown or bought; they can be painted or left bare; they can be round or square.
Can describe a distress signal or flashy accessories.
The sun bakes them, The hand breaks them, The foot treads on them, And the mouth tastes them. What are they?