So...how do i make money without a job?

So...iwant dis cell fone so bad but den i dnt want my mama n daddy 2buy it for me...iwanna buy it independently but my mama n daddy wnt let me get a job (im 15) n bby sittin is outta da question..the fone iwnt is $299 and i only have $65 and i need to make $234 more...itried to start my own cleanin business but idnt have a license so how am i supposed 2 earn money to get this fone...ineed ideas...badly...wat shud ido???