In this Instructable I will demonstrate how to upcycle 28 (or more) everyday household items for gardening.
Step 1: Styrofoam cups with dome lids
Just wash well.
For cuttings; fill cup with sand or light potting soil, poke small hole in bottom for drainage, dip cutting in rooting hormone powder, stick stem in soil, put dome cap on and place in cool, shady to semi-shady spot.
For seed starting; fill with seed starting mix, add seeds, water lightly, place dome on top. If dome has hole in center, cover with tape, remove after seedlings get first true leaves. Set in warm (not hot) spot.
For transplanting seedlings; poke small hole in bottom for drainage, fill cups with light weight potting soil, poke a hole into soil with pencil, add seedling, damp soil lightly around seedling, water. Add dome and set in semi-shaded to partially sunny spot.
Check regularly to make sure the soil is not drying out if dome is the kind with a hole in the center.
Step 2: Styrofoam mushroom containers
Just wash, fill with seed starting mix, sprinkle in some seeds (these are good for starting basil) cover with a plastic bag or put in green house. Mist as needed.