Easter grass can be used for filling up gift bags. It also can be used to cushion fragile Christmas ornaments. Another unusual way to use this is to save your 2 liter soda bottles.
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I like to make gift baskets for various events and learned to seek out Easter clearance for basket fill. I don't use the green plastic grass, I use the colored shredded paper and find that many of the colors can be used for any occasion.