Props from what you've got at home
Action:
- Tie a t-shirt/bandana around your head like a balaclava to be the villain
- An ordinary watch becomes your gadget watch
Fantasy:
- A blanket as your cape/robe
- Chestplate/armor made from cardboard boxes
Jurassic:
- Gardening gloves & sunhat as archaeologist explorer costume
- Attach all your ‘tools’ to the old DIY utility belt in the garage/shed
Sci-Fi:
- Shine a light into some tin foil gives cool reflections
- Kitchen colander for a space helmet