How to get Kaleidoscope
Kaleidoscope came with Summer 2020. It drops from the case that uses that event's effect pool, or you can trade for it.
In that pool it fills 4 of 16 slots, so about 25% of Unusual hats from it get Kaleidoscope.
How TF2Bolt prices Kaleidoscope
TF2Bolt averages pricedb.io's price for every hat and misc item it has with Kaleidoscope. That puts it at #59 of 337 ranked hat and misc effects. A specific item can sell for much more or less than the average, so check the exact item in the Price Checker.
When an item with Kaleidoscope has no direct price, TF2Bolt's Price Checker uses the same item with the next lower-ranked effect, and labels the result as an estimate.













