[NSFW] Is there any way to repair a silicone dildo?

I recently realized that my favorite (and most expensive) toy got damaged and is missing a small chunk. I’m assuming this is from my tossing it in a drawer. Apparently, you shouldn’t just toss expensive silicone sex toys in your drawer. WHO KNEW.

I’m wondering if there’s a repair kit or something? I know it’s just a sex toy, but it was given to me as a birthday gift by an ex-girlfriend and, ridiculously, has sentimental value. Not to mention, it wasn’t cheap. :\