Looking to build a list of unobtainable and unplaceable items

Hello
I am currently working on a data pack for item trims. 
The server i run is looking to add many trims as reward items. And 
So the blocks im using to replace in need to be unobtainable, and unplaceable in survival.
And currently i have everything working, the entire datapack works. 
But i haven't figured out way to get crafting recipes to use anything other than the base item as crafting material so ive been limited to 5 blocks
Structure 
Jigsaw
Command block
Command block chain
Command block repeating
All 5 of these seem completely unusable in survival mode and can be used in custom recipes without any issues. But i cant find anymore like these in the game to replace. 
and i want to be able to add additional trims templates to my pack. But i cant find anymore blocks to swap.
So my question is. Does anyone know of more blocks i can use. Or does anyone know how to set additional data in a crafting recipe to make a single block work based on some other data on the block