A subtle and fun way of making rainbow-inspired nails is through polka dots. However instead of scattering the colors, you can arrange them well to fit the colors of the rainbow and for a cleaner look.
Community Post: 22 DIY Minimalist Monochrome Manicures
Polka Dot Party Nails / 22 DIY Minimalist Monochrome Manicures (via BuzzFeed Community)
25 Cute Polka Dot Nail Designs
Cute Polka Dot Nail Designs, http://hative.com/cute-polka-dot-nail-designs/,
Part 3: 50+ Stylish Polka Dots Nail Art Designs
Rainbow Polka Dot Nail Designs.
50 Different Polka dots Nail Art Ideas That Anyone Can DIY
38 Pastel Nails Designs that are Creatively Stylish 2017
Black polish with white polka dot nail art by yolanda
Pink polka dot nails
Aggie Nails: polka dots with Zoya Toni, by Aggies Do It Better
30 Super Creative Black and White Nail Art Designs
There are fashionable black and white nail art designs which can help you steal the show with classic touch. The black and white will not get out of mind very easily even though there is scope with many colorful items.