To answer your question directly, no;
DVC does not provide a gift for new members on their first visit with their points, nor should they.
We just had our first visit Labor Day and we got a bathroom towel shaped like Mickey! Cheapskates,,,
Please remember that Disney Vacation Club (timeshare management company) and Disney Vacation Development (timeshare sales) are two seperate entities. Since you gave your money to DVD, it is possible they provided you with a gift of some sort when you signed the contracts (a tote, towel, ears, etc).
Any gift provided by DVC for your room would be paid for with member dues, thus it is likely you will not be getting anything for simply using your points.
If you would like a room gift from DVD, you can call your guide and ask about it. Otherwise, I don't think members will vote positively on this at the next annual board meeting (just a guess).
If this information is in error, someone please correct me, so we can learn together. You can order gifts for your kids directly through Disney's floral shop or through several shops in Buena Vista specializing in such items.
Good luck.
- Chris