Hi! Ya, I definitely know where you can find some of these. Ok so the pink twine on the left I bought at Joann's Fabrics. It was in the embroidery/sewing section. It's a very thin crochet twine or cording. Create for Less (www.createforless.com) is a great resource for this...just search 'crochet cording.' It comes in all kinds of colors. The jute-looking twine in the front is called sisal twine. You can get it in bulk from www.papermart.com but I think you can also find it at local craft stores and home improvement stores. The brown bakers twine is from Whisker Graphics ( http://whiskergraphics.com/). The huge spool of red baker's twine I bought from Amazon but if you want a smaller & cheaper spool, you can get the red color from Whisker Graphics as well. The yellow twine was from a friend but you can buy it in her shop in a few different colors here:
http://shopthewanderlust.storenvy.com/products/181263-twine-spool

I hope this helps! Let me know if you have any other questions. :)