pavement artist
US /ˈpeɪvmənt ˌɑːrtɪst/
UK /ˈpeɪvmənt ˌɑːrtɪst/

1.
a person who draws pictures on pavements with chalk, for money from passers-by
:
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The pavement artist created a stunning 3D illusion on the street.
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Tourists often stop to admire the work of the pavement artist.