Something I had always meant to get for our son’s room was a mobile, and it just didn’t happen.  However I found the 8 Planets which would suit him more now…and even better, each planet glows in the dark.  Julie Firth is the lady who designed it and you can buy it through her website or her Etsy shop with paypal for US$120 (NZ$185).  She ships anywhere in the world – just email for a price.  Click here for more of her Calder inspired mobiles.