How to get s without your parents knowing.?

Okay, please don't judge me, I'm not trying to be immature or a pervert or anything, but I'm fourteen and want a badly. I do masturbate and have been for 3yrs now but you know how you do the same thing over and over it eventually gets old, right? Well I've been using the same technique for all 3yrs and it doesn't work as well as it used to. I use to all the time but not anymore. I've also tried using the electric tooth brush, shower head, the pillow ect. but none of them work at all. I'm still I virgin of course so I need something small enough. Anyways, I want a realistic, small, (or vibrator), without my parents knowing. I can't but one online because obviously I don't have a credit card and they would find out because they get home before I do. I can't go buy one in a store like Spencers because you have to be over 18. Anyone have any advice? I really want to try one!