Not sure of your age... so will keep this for below 18. Try asking your parents, family and friends if you could help with chores for cash. I would iron for my brother when he didn't want to... and dishes on his night. The aluminum cans was always good for my sons. He took a big waste basket to the office and collected them from the staff. He also set a box at the contruction site. Lots of empty cans there.
Older neighbors often need weeds pulled and errands run or just help cleaning the garage. Let your parents select the people you work for... or do work for only family members. Walking pets, brushing the cats or dogs, and there is always washing the car.
Just be sure to tell everyone that you are looking for work for pay and what you are saving for. Good Luck... Keep us posted. ^j^ Mrs. C.

PS. If you are computer literate...maybe you could teach someone how to get around on the inter net or find noggin for little people. Just a thought.