I've used Collection's £2.99 liquid eyeliner for 12 years
Stila | Stay All Day Waterproof Liquid Eye Liner - Micro Tip: Review and Swatches | The Happy Sloths: Beauty, Makeup, and Skincare Blog with Reviews and Swatches
Review : Professional Liquid Eyeliner by KORRES | BubblyBeauty
Stila Micro Tip Liquid Liner - Review, Swatches and Comparison to Original