Nikaah & Marriage Issues

Nikaah without witnesses

Q: I did ijab o qbul without mehar and wali and without witness 8 years ago. There was no physical relation but I realized it is wrong. I left that boy now and my father is getting me married to my cousin. Should I get married to him or tell my father about the nikah 8 years ago?

Using remote controlled sex toys when spouses live in different countries

Q: My wife and I live in different countries, and I have been advised that using sex toys is permissible if used by one's partner.

My question is: Can we use a remote-controlled sex toy, where I have control at times and she also has control at other times? Does this fall under acceptable use, or is it considered masturbation?