You will need:

2 plastic drinking glasses
potting soil
flower seeds
care-taking instructions

How to:

1) Fill one plastic cup with potting soil.
2) Plant seeds in soil using planting instructions.
3) Water seeds.
4) Using a nail or pin, punch several holes in the other cup, cover with transparent tape. These holes are used to add more water and to allow fresh air in.
5) Tape empty cup to filled cup to complete your starter.

Source: York Summit District Crafts for Beavers