Giant 3-D Snowflake - giant is right. With 6 sheets of copy paper, each trimmed to 8.5" square, this giant measures nearly 23"! Next time I'll make them a bit smaller, and with stiffer paper. Card stock perhaps. Invisible tape is also a must.
How to Make a Six Sided Paper Snowflake by Craftiments - Make them out of wax paper and hang them in your windows. Hint: Glue them to the windows with washable glue stick, it washes off easily with a little soapy water.