superglue

I debadged my Leon this afternoon and it all went very well except for the letter E. It came off OK and I removed the black sticky stuff but I then noticed really hard blobs that just wont budge no matter what I throw at it! I have a horrible feeling the previous owner has used something...

Has anyone got any good ideas or know what to use to remove superglue from leather seats? The leather interior I got is perfect apart from on the rear head rest a stuffed toy has been stuck in. Ideally I’d want to use a product that would dissolve the glue then I’d use lot’s of leather cream to...