Winteria, Icemagic, WhiteSparkle, Icewings, Snowmania. :)
No, she has kits with fireheart.
Brambleclaw has no kits biologically, since it has been revealed that Squirrelflight did not bear him kits; instead, the kits were her sister Leafpool's. However, his adopted kits (the aforementioned kits) would be Jayfeather, Lionblaze, and Hollyleaf (presumed deceased).
Spiderleg has three kits named Rosepetal, Toadstep, and Daisypetal.
Dovewing and Foxleap do not have kits together, nor become mates.
Moonflower's kits are Bluestar and Snowfur.
No, he doesn't have any kits.
Who are Fire Stars kits
As of yet, Lionblaze has no kits.
No, it's impossible. A she-cat is not ready to have kits until she is around a year old.
At most craft stores, as well as big box retailers such as Walmart and Target, one can purchase a large variety of crafts that come in complete kits for both children and adults. Some options include embroidery kits, foam kits, tie dye kits, knitting kits, cross stitch kits, latch hook kits, and stuffed animal construction kits.
Ravenpaw never had kits that anyone knows of.