Photo: © 2010 AP via AAP/Sandy Huffaker
The broadcaster has put the blocks in the cafeteria of its Sydney office to encourage inventiveness.
"We have innovation as part of the core values at the ABC," managing director Mark Scott says.
But Senator Eric Abetz is unimpressed, and has suggested the ABC's core values could have been facilitated with cheaper alternatives.
"I think the long-suffering taxpayer that funds the ABC might be interested to know what the cost was," he told the Senate.
"Plasticine might have been cheaper … or finger painting."
