Xarisma Trading sell a selection of fully microwavable soft toys, perfect as a safe alternative to a hot water bottle on chilly nights (although they are so comforting that my children want them warmed as part of their bedtime routine regardless of the season).
Heat in the microwave for 2 minutes (the toys, not the children!), and they stay warm for up to 2 hours with no risk of scalding. They can also be frozen to use as a cold compress for bruises, sprains, or to cool a hot child.
The Cozy collection, Beddy Buddies and Sleepy Bears are all about 12” tall & 1kg in weight, made from very soft microwavable material, and designed to be exceptionally cuddly. They contain treated wheat grains and dried French lavender flowers which give a gentle soothing fragrance to aid peaceful sleep and can be reheated many thousands of times.
These toys are also useful for some children with special needs involving sensory, attention, and anxiety issues, such as Asperger's, Autism, ADD and ADHD. The weight of these toys (around 1kg) provides a sense of security and pressure which they find relaxing. Having a weighted Cozy Cub on their lap in the car or on their tummy when they are in bed, especially as part of a routine, can help to calm and pacify them (my own children have Aspergers so I can vouch for this personally).
These animals have all been designed, developed, and made in England by Intelex to the highest standards of quality and safety, conforming to either EN71-1/2/3. ASTMF963, CE, or MDA.