Open ended toy cones

The FreeCad model is included and has been made parametric.  40mm cone is 40% of height wide, 50mm cone is 30% of height wide, 60mm code is 20% of height wide.

Pair these cones with pieces of wood to make a balancing game (there is popular one out there but I do not name here).

For printing, PLA is fine.  I'd found that printing with an inside only brim made for a more reliable print and it easy to take off.

Use your judgement about the points, you may want them filed down a bit.  There is also radius in model you could adjust if you choose.