Masturebation

So I'm 16 my bf asked a chick for nudes and another I don't like (I know she was trying to get with him) sent him nudes so we broke up for about a month. I don't plan to have sex with him any time soo but masturebating calms me when I'm stressed what should I do/ use. I can't buy sex toys it's illegal or whatever and fingering doesnt get me going So what to do? 
Update: I tried to talk to my mom about it and it was awkward... She basically told me to just exercise when I get the urge which isn't much help at all.