You might go to any retail store (especially electronics like Best Buy) and ask if they have any scrap. I work in purchasing/receiving and sometimes, especially electronics, things come with the shaped styrofoam inserts. I have collected quite a few interestingly shaped pieces just waiting on a project to happen.
Home depot does have some HUGE sheets for $15, but its the Pink Panther insulation stuff that's really hard and doesn't break off to create the right look.
I got some for free at Conn's an electronic store.... I would definitely go ask stores first before you buy... they will just throw it away... you will be recycling.
I just set Swordtail's timer for his bath and paused it so I could actually fill his soaking bowl up and he crawled over my phone and canceled the timer
Mirage came out of brumation on April 26. He was doing great. On May 2 he started acting funny. We just redid his tank, and he keeps going into one of his hides. He just lays there. He shows no intrest in food. HELP!