It is a work of art created by sculptor Hedva Ser, who is a UNESCO Goodwill Ambassador, the organisation says
At least 13 more passengers are still missing, according to locals.
The bodies were found after rescue operations resumed on Sunday morning, Sub-Inspector Abdul Halim of Kalagachhia Police Outpost said.
Eight bodies were recovered on Saturday night.
The vessel, ML Shathil, left Galachipa terminal for Patuakhali town on Saturday afternoon and was caught in the storm in the Kalagachhia river.
It sank after a while.