https://www.tacklewarehouse.com/Queen_Tackle_Switch_Blades_3pk/descpage-QSB.html

What can anybody tell me about these blades for making bladed jigs? 

Also, for those of you out there making bladed jigs, do you have any favorite blades? I'm new to tackle making.

There is an existing topic about your first question.  You can see some of the existing replies:

 

Sorry, can't help with your other question.

I read on another site where a guy was having trouble getting vibration with that blade.  I buy the shakee blade from a company in Richardson, Texas.

The shakee blades that most companies sell are all pretty similar and work just fine. You can find a lot of different styles of blades on the bay if you're feeling adventurous.

Okay. So how do you guys connect the blades to the heads? Split rings?

13 hours ago, Grim_Reaver said:

Okay. So how do you guys connect the blades to the heads? Split rings?

On most of them that's how I do it.

4 hours ago, Bluebasser86 said:

On most of them that's how I do it.

X2