I'm going to assume that, before auto-correct “helped” with that message, your question looked more like:
“Is this a legal combo in order to get infinite tokens?”
The answer is: Almost. You can't choose “infinite”, since it's not a number; you can, however, choose an arbitrarily large number - one million is common, or perhaps 1,234,567,890 - and create that many tokens.
And yes, Splinter Twin on similar creatures (
Pestermite, for example) is a well-known combo.
Suggested reading: Comprehensive Rules, section 716 (Shortcuts).
d:^D