Ooh love this! A few of us tried making a "mummy wrap" race using old toilet paper rolls, the kids had a blast wrapping each other up and racing around the living room, zero cost talaga. We also did a DIY haunted house using bedsheets, flashlights, and creepy sound effects from YouTube, and honestly it kept them entertained for hours, just set up stations in different rooms where they solve "riddles" to escape each area.