My mum found my E :S?

hey, i have some ecstacy for the theme park with my friends but my mum found it! it cost quite alot between us all, i can't pay them back :S, what should i do? i told her it was legal drugs and we're playing a prank, please any suggestions and no 'ooooh drugs will kill you' because i don't need a lecture, just any help, thankyou:)