Here are some ideas for Halloween decorations that you can make at home:
Milk Jug Ghosts
Draw a face on an empty milk jug with sharpie or paint, then place a light inside.
Find old glass light covers or lamp shade covers at a local thrift store. Using fabric, particularly felt, cut outs eyes and a mouth and glue them on to create a face. Light them up with a small light or candles.
Create a decoration from empty bottles with interesting shapes. Cover them with black paint so you can’t see through them. Add labels to each bottle with creative and gruesome names for potions or witches brew ingredients.