form out of
form (something) out of (something)
To create or shape something from something else. Roger was so bored during dinner that he started forming a heart out of his peas.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
form something out of something
to shape something from something. He formed a tiny elephant out of the clay. Wally formed a mound out of the sand.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.