Brummel Splice and MacDonald Brummel.
Just discovered these have been added on the Animated Knots site. I feel like they have just been added recently but I could be wrong. In any case, these two animations are good for learning to make the fixed eye loops on whoopies slings of if you want to make a length of amsteel with two fixed eye loops on both ends for suspension extenders.
The MacDonald Brummel is particularly handy as it allows you to make a fixed loop if you only have access to one end. It's convenient if you don't want to undo your entire whoopie ling to redo the fixed eye loop or to save you from pulling a completed fixed eye loop through he amsteel to make the other one which can be difficult.
Thought this might help some people.