Was it Made in the USA? If so, Martin Greenfield.
I don't think you intended to start a debate on the merits of using proper grammar, but since I started the side conversation, I'll offer my piece.
I understand that he's young and this is an informal platform, which is why no one is asking people to use "could have" instead of "could of." * I'm not suggesting that people learn the difference between "then" and "than."** I'm not asking anyone to avoid ending their sentence in a preposition.***
I just offered a bit of advice in order to help. It would be the same for any member, DM7, Spoo, et al.
Again, I didn't mean to blatantly insult anyone nor did I intend to start "Thrift Thread Gun Debate, 2013."
*Could of is often the mistaken transliteration of "could've," which is the contraction for "could have." In nearly all cases, could have is correct.
** "Then" marks time sequence and often means "next." "Than" shows the comparative. z.B: I will eat lunch and then I will go to work. I am taller than him.
*** Not a concrete rule in English. However, prepositions are best avoided at the end of sentences in order to avoid confusion and leave a sentence open-ended. z.B.: "Where are you at?" becomes "Where are you?"
You can say whatever you want right? This is an internet forum...