Wow! You really can find anything on the internet. I just started playing Jacks again after 45 years. I decided to teach it to my 2nd grade students to help them remember the combinations of 10 (my set has ten jacks),to improve their eye hand coordination, and to just have fun. I could only find plastic jacks in the stores, but I ordered some that work fine and are made of metal from Oriental Trading Company. The jacks are not as heavy as I remember them back in the 60’s but they are better than the plastic. I got a dozen sets for under $5. Thanks to all for the helps on this site.