Sorry for such a late reply, been really busy haha!!
I think I have come to a decision! I have also now lost my snowy, it has been a very difficult couple of months
I lost snowy and cookie within 2 weeks of each other
I have since had 2 new Syrian hamsters, so I now have 2 dwarfs and 2 Syrians.
Would it be possible to have my 4 new hamsters in the circles and like you suggested, have a rainbow in the middle rather than the "I love hamsters" and have my previous hamsters names under it ?
All colours etc to stay the same xx