Not tail art exactly, but alot of PV-1 Venturas were delivered with Disney type characters and slogans painted on the port mid fueslage. Apparently the Disney studios were over the road from the Vega factory, and workers would 'do their bit' during their lunch breaks.
These were painted out on RNZAF machines shortly after being brought on charge, partly because of the content - one showed a cartoon US serviceman p!ssing on the japanese flag - which top brass worried could cause excessive hostility towards downed crews in Japanese hands.