Toddlers are not exactly known for their affinity for formal wear, but if your toddler has a special occasion to go to he might find himself in need of a tie. Usually, if a toddler has to wear a tie, it is because he has been invited to a wedding, anniversary party, or some religious function. While very little kids might look very cute when they are all dressed up, sometimes getting a toddler into finery can present a challenge to parents. Hey, you can barely get the guy to wear pants on a regular basis. Since your toddler will probably only have to wear a tie every once in a while, though, it probably will not kill him or you.
Choose a bow tie for your toddler instead of a regular neck tie. He is less likely to grab at a bow tie. A regular neck tie presents him with too much opportunity to remove the tie himself or else get dirty hands all over it. You can go ahead and forget about getting him a bow tie that you have to tie yourself. Even grown men have trouble tying their own bow ties and keeping them looking nice. Instead, get your toddler a clip on bow tie. This way, it will be extremely easy for you to put it on him and if he grabs at it he will not choke himself. He can just pull if off and you can clip it right back on. Plus, a clip on tie will be more comfortable since he won't have anything snug around his neck.
You should also probably choose a tie that has a dark or brightly colored pattern. A patterned tie will hide any stains of fingerprints much better than a solid colored or pastel tie will. You want the tie to keep looking nice for as long as possible.