How to Create 2D Particle Blobs?

Hello,

I’ve been trying to create a 2D particle system that creates blob-like material for the past few hours using several ideas but to no avail. I’m attempting to make each particle be it’s own individual blob that warps and wobbles like jelly. I’ve been apple to create the effect for a material, but when I apply it to a particle system, all the particles shift uniformly in size, but are all perfect sphere (I think this is because I’m using World Position Offset for the effect).

I don’t think I need to use metaballs since I don’t need the blobs to dynamically merge and they don’t need shading, the blobs are a single color.

Any help or suggestions are appreciated. My last resort would be to animate the particles individually, but I believe the effect is possible through UE4. Maybe I’m wrong.