I have been ordering my TN inserts from Yellow Paper House on Etsy for about two years now. About 98% of the inserts I use come from here. I love the paper, the colour and cover options offered, the service and the quality of the printing. Each and every insert is beautifully made.
I have bought several different colours (aqua, teal, purple, mint, and also mixed booklets in neon, jewel tones, watermelon and melon colourways), to match or contrast with my covers, or just because they are pretty. Donna has created several custom orders for me, mixing different colours in one notebook for me, and also adding matching covers.
Below are some examples of the colours, pattens, covers and insert designs offered – both for ring organisers and for traveler’s notebooks. You can see there are many different layouts you can choose. Yellow Paper House also do printables (including washi!)