How to raise money for 12 year old for christmas?

well for christmas mostly want an ipod touch and a flip video camcorder ( so i can film videos of me n my friends n upload em to facebook n stuff) well my dad is cheap id say he still hasnt gotten me a b-day gift and it was nov.7 o_o so im thinking that i ask my dad for ipod and mom for flip but im not sure my dad will buy it and iwant one really bad and i dont want my dad to buy the flip cuz he thinks ill do "weird" stuff on it which i wont cuz that is just gross and i dont want my mom to buy me both cuz i feel like she would spend too much money.so i was thinking what can i do to raise some money so i can help pay with stuff i was thinking babysitting my 2 year old half brother (my moms) and my moms dad owns his own store n my mom is manager i go there often n im friends with all the employees ^^ i already have $55 dollars from my b-day money but i want to earn more to help pay so please help me im going to my moms this weekend so maybe i can help work and then i go over 1 more weekend n ya so what are some ways to earn money at my dads which is who i live with dishes are out cuz my sis mystep sis and i do dishes after school n after dinner and they dont pay us ( which inmy opinion isnt fair) maybe can i take out the trash? idk please give memore ideas for my mom ndads house!!!! thank you so much!!! -hugs-