Did you ever try to do chores around the house?.What I used to do when I was younger (and what I still do now lol),and I wanted to get something I used to clean the house,do laundry,do groceries,Babysit my younger brother,tutor him at his homework,and If my parents felt that i've been doing a good job each week they would give me some money on what they felt I worked for. By the end of the month or month(s),they will purchase what I wanted(It took me 7 months to get my speedy 25 =)..just sugest it to your parents,and they might say yes =)..good luck!