I'm with the first lady, I need more details. But I'll tell you what I've used or offered to other brides.
*Loosely lay it down the center of the tables (scrunching it to add a little height), if they are rectangle, bunch in the middle if it's circular. Intertwine ribbon in your wedding colors, greenery (ivy, honeysuckle), sprinkle confetti or chocolates, and place candles on top. If you have candles make sure they are in a container because the tulle will catch on fire.
*If you have poles, swag it between them.
*If you have windows, swag it underneath and add greenery and a candle.
*Use it on the cake table - bunching it on the cake to soften the look, sprinkle flower petals and/or ribbon in your colors.
*Have an arch at the entrance. Use greenery and white lights and tulle as the accent bows. It's a nice way to come into your reception and also makes a great backdrop for your wedding cake.
*Use them as pew or chair markers at the church or to signify important people's seats.
Tying tulle bows is easy. Make several loops in the fabric, 7 for small bows or 15-20 for larger, gather them at the base and use a rubber band to secure them. Then simply spread the fabric apart and fluff until you achieve your desired look. You can make dozens of these bows ahead of time and then just secure them to whatever you want once you get to the church or reception hall. Most establishments won't let you use tape or staples but you can use pipe cleaners or more tulle to secure the bows.
Congratulations! Hope this helps.