She gave me this one...
Rolyan Therapy Putty for Physical Therapeutic Hand Exercises, Flexible Putty for Finger and Hand Recovery and Rehabilitation, Strength Training, Occupational Therapy, 1 x 57g, Soft, Yellow https://www.amazon.co.uk/dp/B004ULL1..._aDZpDb61ZZ77J
It's fab!!! Can see it coming in handy for stress relief too!!!