Topic Explanation:
The forum discussion is initiated by a middle-aged woman with a colostomy, who is reintroducing herself to the community after a long absence. She shares her experiences and preferences regarding ostomy products, particularly favoring Convatec moldable wafers and Eakin cohesive rings for their effectiveness in sealing her stoma, which is set deep into her belly fat. She also mentions her interest in developing cost-effective sink-toilets designed for ostomy users to make the process more convenient.

Advice and Insights:
1. Several users express their preference for Convatec products, particularly the moldable wafers, and share tips for better usage, such as using a wet finger to help the pouch's ring snap on more easily.
2. Hollister products, including the New Image 2-piece trainable pouch and CeraPlus accordion light convex wafer, are recommended by a user who appreciates their lightweight nature and barrier extenders.
3. The Cera products are generally well-regarded by the community.
4. A user shares their experience with a new filter system demonstrated at a UOAA meeting, which involves a bag within a bag, although it is currently only available in convex models.
5. There is interest in developing a specialized sink for ostomy users, inspired by a device seen online, which includes a small sink with a U-shaped front and a hand sprayer. The original poster is seeking to collaborate with local plumbers to create a similar system domestically.