What if jungling items became a trinket?

I've been a jungle main since season 5, and while I do love jungling one thing has always bugged me. That is, I have to purchase a jungling item. And while jungling items are cheap and provide decent stats, I've never liked how I have to use these items to basically replace items that could prove to be more useful. For example, if I'm playing an AD jungler I'm forced to purchase a Warrior Enchantment, which only provides AD and 10% CDR. Nothing more nothing less. However, I would much rather use that gold to save up for something like a Youmuu's, Duskblade, or Death's Dance. Or if I'm playing an AP jungler I have to buy a Runic Echos instead of a Luden's Echo, and etc. However, if jungling items get replaced by an upgradable trinket, then that gives players the freedom to better optimize their builds. And as for how the trinkets are upgraded, I was thinking that junglers can get stacks for slaying monsters, and once fully stacked they can give the player access to either challenging or chilling smite rather than having to pay gold for it.