Need advice

My (24f) mom (50+f) found my vibrator.

I recently got laid off and I've been at home for the past week and haven't really been doing much apart from some mediocre cooking and lounging around. A few days ago, i took out my vibrator and had big plans, but i fell asleep while scrolling on my phone. And that's where I dropped the ball. I kept postponing my plans because I kept falling asleep whenever I got into bed so my vibrayor just stayed under my pillow and soon enough, I forgot about it. I move a lot in my sleep, so the vibrator would move with me and sometimes end up in my blanket. I'd only remember when I folded my blanket but it had been there for so long that i never bothered to put it back.

Cut to today, I was making breakfast for my mom and she offered, very kindly, to change my bedsheet. I agreed and was walking to my bedroom to tell her about this video i watched and thats when I saw it. It had just fallen out of my blanket as she lifted it up. We both saw it. I looked at her like a deer caught in headlights and she looked back at me poker faced. I picked it up quickly and nervously put it in my closet. She didn't say anything and didn't make any weird faces and just pretended that she didn't see it, so I did the same and continued talking. But we both knew. She left for work and idk how ill face her today evening.

The worst part is that I hadn't even used it. But I can't bring myself to even look at it now.

What must she think of me? What can I do before she does something?

My partner suggested that I buy more vibrators and leave them around the house so it becomes commonplace and she becomes used to them. Or that i should wrap it up and present it to her a gift. I want to burn this house down; but I'm not sure if that's big enough to make us both forget.

TLDR: how can I erase memories