Avon History: 1886 - 1937:
In 1928 the company boasted 25,000 representatives and introduced the first products under the name of Avon. In 1937 the company's name officially changed to Avon Products, Inc.
Most Popular Collectibles:
"Official" Avon collectibles are offered through the company and will include "Exclusive" or "first-to-market" items. According to Avon "these often come with certificates of Avon authenticity. They can also be branded or licensed products, numbered items such as Avon Steins, seasonal/sentimental dated items, or items designed exclusively, internally, by Avon".
Avon's Pictures and Prices:
First Novelty Containers:
Collectibles Yes, Valuable No:
That being said, there are several series that are popular with collectors, even if the values aren't high. The Avon Nativity set pieces is always near the top of the list when looking at Avon, licensed pieces can bring a higher price, as well as the porcelain Seasons in Bloom series, but I feel they probably still aren't at the original price.
Avon's Cape Cod dinnerware set is another popular collectible, the bigger pieces sell well on eBay and online, but usually well below their original values.
As with many things collecting -- it holds true if you like it, collect it. But not for investment value!