Bucket of Sap

 is an item in Broken Age.

Obtaining
After Returning to the Lumberjack's House and getting the Stool, go to the talking tree. Hang the Bucket on his nose and show him the Stool to make him vomit sap. This will turn the Bucket into a bucket of sap.

Using
Return to Shellmound and talk to Marshal Dune. Give him the bucket of sap to reinforce the sand. This will bring you one step closer to Shellmound's Maidens Feast.