Hi Chinikaylo -
I guess it depends on what you mean by "play".
I find it very relaxing to fondle some of my slip-joint traditional knives, as they are very smooth and have a great feel in the hand.
I love to open and close my Acies, as it is so smooth and again, the texture of the titanium scales just feels good in hand.
For chopping stuff, I love to play with my JK/Pitdog Knatchet.
Probably the most plain-old FUN I have with knives is from throwing a (relatively) cheap set of throwing knives into an old stump face. Throwing and hitting a target, and in my case even just getting the knives to stick, is a lot of fun to me.
Whittling and carving is also fun, and I like to use my Izula for those tasks.
best regards -
mqqn