Fingers down her throat

My 13mo has just discovered that she can stuff her hands in her mouth to make herself gag. I hate it!! I am 100% sure she is looking for a reaction because she’s very testy lately and if we say “no, not safe” like when she tries to stand in her little kiddie table chairs or pull out plugs before redirecting her so he just wants to do these things more. I have been just pulling her hand out of her mouth, talking to her about other things, and trying to redirect but it is really grinding my gears. Anyone else have a kid that does this?