I would suggest looking up "training chopsticks", where they are already attached!
Or even something like this reusable rubber piece that can slip over any set of chopsticks. https://www.amazon.com/Chopstick-Training-Chopsticks-Beginner-Trainers/dp/B0756LTF4Y/ref=asc\_df\_B0756LTF4Y/?tag=hyprod-20&linkCode=df0&hvadid=289716589380&hvpos=&hvnetw=g&hvrand=8022594027882994030&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9004421&hvtargid=pla-520645703227&psc=1