Believe it or not, Wal-Mart sells air tools. Not Ingersoll-Rand to be sure, but some cheapie gerenic (Chinese) brand. Depending on how often you are going to use them, these may do the job...for a short time.
Or try Auto Zone for better (?) quality.

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Stage Wizards Lighting and sound designer
1981 SD 328,000
1985 300TD, 266,000
1984 300 TD, 267,000