1. Frosted Tips: Paint your nails with a light blue or icy silver base color. Then, use a nail brush or a sponge to create a gradient effect by dabbing on a slightly darker blue or gray shade towards the tips of your nails. Finish the look with a layer of iridescent glitter or a matte top coat for an icy effect.
2. Frozen Snowflakes: Apply a clear or pale blue polish as the base color. Use a thin nail art brush to paint delicate snowflakes in white or silver on each nail. You can find snowflake nail stencils or decals to make the process easier. Add a touch of sparkle with silver or holographic glitter accents.
3. Crystal Shimmer: Start with a sheer or nude base color. Then, use a fine brush or a dotting tool to create small irregular shapes on each nail using metallic silver, white, or light blue nail polish. These shapes can represent ice crystals. Apply a top coat with a subtle shimmer to enhance the icy effect.
4. Icy Ombré: Paint each nail with a gradient of colors inspired by ice. Start with a pale blue or icy silver near the cuticle and gradually fade to a translucent white or clear polish towards the tips. You can also add some glitter or rhinestones to accentuate the design.
5. Winter Wonderland: Apply a pale blue or light gray base color. Then, use a sponge or a brush to create a snowy effect by dabbing on white polish irregularly across the nail. Add some silver or holographic glitter in random places to mimic sparkling snow. Finish with a glossy top coat.

Remember to let each layer of polish dry completely before moving on to the next step, and consider using a base coat to protect your nails and a top coat for longer-lasting results. Have fun creating your icy manicure design!