I've had quite a few people ask me for information on projects and instructions for making quilts and other items from recycled neckties.
So I'll share what I know.
I will probably post more on this soon, as there is much to say.
Why sew with neckties?Well, first off it's a great form of recycling, and it's a fun way to use whimsical fabrics that often make bizarre neckties, but great quilting fabric.
Too, it's often a cathartic project in that people often use ties to memorialize a loved one (a mourning quilt, for example).
Are there any books available with ideas and instructions?Most of the books with instructions are currently out of print, but you can sometimes find them on ebay or places like 
bookfinder (or their affiliates, like Alibris).
Unfortunately, they've gotten quite expensive--far more so than what they originally cost new.
These include:
Quilts from Neckties, by Sharon Newman (1995)
Tied Up!, by Gail Ellspermann and Frances Krupka (a Design Originals booklet, 2002)
Love to Quilt:  Necktie Sampler Blocks, by Janet B. Elwin (1996)
Ties, Ties, Ties:  Traditional Quilts from Neckties, by Janet B. Elwin (1996)
Threads and Ties that Bind:  Exquisite Quilts from Tie Fabrics, by Jean Johnson (currently surprisingly affordable on Amazon)
and the only one in print:
Daddy's Ties: a Project and Keepsake Book, by Shirley Botsford.
How do I use the ties?There are two ways of approaching sewing with ties:
using them as is, 
or removing the 'guts' and using the fabric (including cutting templates, etc)
I do both, though surprisingly I more often just use the fabric.
How do I clean neckties, especially the fragile silk ones?You might want to wash your ties first.
I combine all the fabrics in my projects--cotton, wool, silk, and polyester, but you can certainly only choose the silks if you so desire.
I throw all of them into the washing machine--the ones that disintegrate, well...better now then in your project.  There may have been worn areas not visible to the eye.
Yes, I wash the silk ones too.
Don't just toss the ties in loose, or you'll get one big knot.  
I take five or so, place them in a pillowcase, and close it somehow (rubberband or a knot).
Hang to dry.
The polyester usually washes beautifully.
The silks may come out all twisted, but if you're going to take them apart anyway--it doesn't matter (if you're not taking them apart, you might want to dry clean).
article about 
cleaning necktiesHow do I take the ties apart?Let them dry, then clip the two anchoring stitches on the top and bottom of the underside (horizontal tack stitches).
Once the tacks are snipped, you can usually take the thread and just pull it out in one swoop, thereby freeing the lining (so much easier than seam ripping).
Now you can iron the fabric and cut as desired.
What if I don't want to take the ties apart?If you're making a skirt, or if you just want to use the ties 'as is', you can butt them up tightly next to one another and stitch them together with a triple zig-zag or similar type stitch.
And, as I just stated, you might want to dry clean.
Now, how about some inspiration, eh?
I love this unusual quilt by 
Lori Mason, called Ronny's Ties.

Dragon Top by Amy Weis of To Tie For
 Skirt
Skirt also by Amy Weis (her website is not longer active)
 Maylina
Maylina has some brilliant designs

Incredible rugs by 
Eileen Away "straightjacket"
"straightjacket" by Bespoke by Brouhaha (I like this back detail)

pillow by 
Carol Sews
Blue Vest and 
Green Jacket by Joan Wells
Liturgical Stoles by Janet Armstrong
picture frameProm dress made from neckties on craftster
dress by Deviant Art
Vest by T Vindy
tampon cozy on craftster
Quilt on Dacia Ray
Quilt by Precious Relics
Items for saleFit To Be Tied--hand sewn clothing line out of Seattle 
Necktie 
apparelhandbags from KB Originals
pail pattern, and 
crazy necktie pattern, from Henrietta's Handbags
Tutorials:HGTV project for 
necktie handbagshandbag by Sonya Style
Schoolbag on CraftBits
Backpack with necktie handles, by Crafty Gal
Tie angel project
Snake toyDIY project for 
reupholstering a chairanother source for 
reupholstering a chairarticle about designer 
Frances Krupkaarticle about 
Pillows of Remembrancearticle about bags made from 
Rudy Giuliani's necktiesMy past posts about inspiration for sewing with neckties:
apronmagazine projectsimages inspirationdressEaster eggsmy 
bookmarktotequiltsmy first 
log cabin blockmy second 
log cabin blockquilt photomy 
pincushionrugmy 
owl coin pouchquilted boxtons of 
Laura's tutorials for purses, skirts and accessories
also Laura's 
zippered clutchPosted on one of my other blogs:
Ipod cozypouchThere are also more inspirational projects (especially clothing) posted to my Flickr group, 
Sewing with Neckties.Labels: inspiration from others, Sewing with Neckties