Blending Gray Hair With Silver Highlights. This is one of the popular and trendiest looking shades of grey highlights for 2016. HOW-TO Blending Gray hair - YouTube.
Foil Highlight with Gray Blending Root Smudge. This type of gray hair dye is perfect for someone who wants a low-maintenance look. If you have short and kind of stacked bob haircut then try this nice blend of different grey shades.
You can use temporary hair color spray like these here or temporary hair chalk that matches your natural hair color.
How to blend in your gray. You can try ombre babylights chunky streaks in your hair etc. You can also consider opting for babylights. GRAY BLENDING FOR DARK HAIR WITH GREY HIGHLIGHTS ONLY NO LOWLIGHTS - YouTube.