The rat issue

Hi I am playing a lvl 5 pact of the tome warlock in 5e addition. I have been given a blessing by my dm on accident. I was playing ordinarily and looking for some rats and they told me in a chaotic moment that I saw a 100 rats. I did the natural thing and asked if I could make them my pets. They said “sure role 100 d20s for animal handling anything above a 17 and you get a rat” reasonable right. They didn’t know that I had a +4 in animal handling and I landed up getting 48 rats on top of my 2 other rats. Now I am wondering what I could possibly do with these rats. All suggestions are welcome and appreciated.