10pcs Empty Plastic Squeezable Liquid Dropper Filling Bottles Needle Tip Applicator

I love needle tip bottles as they're great for systemic writing and mark making in my artwork. I wasn't expecting these 30 ml bottles to fit heavy body acrylic paint in, for sure, but I have semi-fluid acrylics, quite runny. To my dismal, the bottle mouth is so narrow that it's extremely difficult to pour some of my acrylics in, so much so that I wasted lots of paint in the process. I first tried with a fitting mini funnel but it didn't work. Then, I tried by pulse, and no luck either. It might work well with inks or flow acrylics, but I don't own any of those. It is a pity because the bottles are good quality plastic and the tip is also good quality. Yet, they're worthless to fit in the many types of acrylic paints I own.