How can I convince my mum to let me buy these shoes?

I have been wanting a pair of Nike dunks I see at the store for ages now...and I have enough pocket money to buy it-- but it's pretty expensive and my mum doesn't let me buy them because she thinks its a waste.

I have a pair of classic Converse, and I want a pair of Nike dunks. How can I convince my mum to let me buy them (with my own money)?
tell her you saved for them and its your money and this would be a good way for you to learn a good lesson in life about saving money for the things you want
bro its your money,

just buy the shoes.
Do extra things to help around the house. Do extra things to help the whole family. (did you ever think that with mom's experience she might just be right?)
Try this....

they have many styles Nike.
and the price is CHEAP ,the quality is best.
maybe you can get your favorite
I try to find the best place for you to buy shoes.
The prices are good and FREE Shipping.
From this link...
http://www.nike2nike.com
Hope you like some of it. Good Luck!
Tag: How can I convince my mum to let me buy these shoes?