You can use "Mix Word Beginnings" for free here

Try Mix Word Beginnings with different words or names. Curious about even more original features? Then go to the awesome NameRobot Naming Toolbox, where there is Mix Word Beginnings with all the trimmings. There are even more name generators and clever tools for word search, naming, and inspiration.

This tool creates abbreviations from the beginnings of up to four keywords you have selected. As more than just the first letters are used, this can lead to harmonious words being created that no longer even sound like abbreviations.

Examples: The name of U.S. snack and sweets manufacturer Nabisco (National Biscuit Company) and Amoco (American Oil Company).