Here are a dozen patterns and tutorials for making decorative crochet trims, they are a lovely addition to pillowcases, burp cloths, receiving blankets, dish towels, kitchen linens…you name it! They can be worked in both yarn and thread and are pretty basic to make. I’ll be adding more goodies to this page as I find them, enjoy!
Ric Rac 
: A simple design worked in (ch) and (dc), can be made as thin or wide as you like using various yarns and hook sizes.
Pretty Pillowcase Hem : Includes tutorial for working directly onto pillowcase hems, pretty scallops using (sc), (dc) and (ch).
Daisy Bullion 
: This is tatting with a hook (you’ll need a cro-tat hook), includes a step-by-step tutorial with lots of images to help you along.
Simple Design : Suitable for embellishing plain, tired clothing, this particular example dresses up a t-shirt. Stitches used: (ch) and (dc).
: Here’s another one for pillowcases, stitches used are (sc) and (dc).
Easy Zig-Zag : Suitable for dish towels, kitchen linens and even burp cloths. Tutorial shows how to work directly onto a tea towel.
Two Designs 
: Instructions for making both the top and bottom samples shown, simple stitches used (sc), (dc) and (ch).
Lacey : Suitable for handkerchiefs, worked in pearl cotton thread (double strand) or cotton lace thread.
Wide Scallops 
: This one adds an extra row of (sc) on top of the foundation row before working scallop design.
Princess : Suitable for baby blankets, satin ribbon can be woven through the eyelets or holes made along the bottom row.
: First row is (sc), second is (dc) and picots made along the third row. Also includes a scallop design.
Laces & Waves : A lacey thread design, this example is worked on a burp cloth (check the other ideas  on this site too, lots to choose from). See this page for assorted burp cloths .