Make some fake account somewhere, get a throwaway cheap laptop, nothing special, just enough to function, connect through a public wifi away from your place using double vpn, proxy or Tor, send it to their families and then dump the laptop, but take out the HDD before throwing it away or simply completely destroy it in a grinding machine like the ones used in recycling plants.
Or you could simply do that with a throwaway burner phone again connected to a public wifi far away from your place using mobile proxy, vpn or Tor.