A new collaboration between Kennebunk-based Tom's of Maine and the recycling venture TerraCycle asks customers to squeeze even more out of each tube of toothpaste.   In a press release from the company, packaging from Tom's line of personal care products can be sent to TerraCycle, a task that can earn recyclers points to be contributed toward charity gifts or converted to cash to support any school or nonprofit organization.   TerraCycle's programs form "brigades" geared at collecting a specific range of products that can then be recycled or "upcycled" and reused. Shipping costs for sending in the used product packaging to TerraCycle is pre-paid.   For the top recyclers through the Tom's of Maine brigade between now and Nov. 30, the company is offering an extra $1,000 to be donated to the nonprofit or school of the winner's choice.