My beard approves! And you are kinda OK in the US as long as your sales are under about $15k, and you have no bank transactions over $10k. At that point you trigger certain flags that bring you to the attention of the authorities.... if they haven't already noticed the products coming across the border. :-) Good luck with it!
$10k transactions at a bank, whether all at once or aggregate over a day, trigger the filing of a CTR (Currency Transaction Report) at U.S. Banks. This is $10k across all accounts you hold at a bank. DO NOT STRUCTURE YOUR DEPOSITS TO TRY AND AVOID THIS $10K LIMIT. It will land you in a bigger world of trouble as it will look like you are money laundering and deliberately attempting to avoid the filing of a CTR. There are also SARs (Suspicious Activity Reports) - if you look like you are structuring deposits (for instance, depositing just under the CTR threshold, especially over multiple days) - a SAR will get filed, because of AML (Anti-Money Laundering) issues.