1. Multi-purpose Banana Slicing Machine
The multi-purpose banana slicer is an invention by Phan Tấn Phong from Cái Nước, Cà Mau Province. In addition to slicing bananas, the machine can also cut various vegetables, making it easier for farmers to prepare food for livestock and poultry. Thanks to this practical invention, Phan has become known as the beloved 'farmer engineer' of Cà Mau.

2. Freshwater Filtration System
In response to the severe drought and salinity intrusion affecting the Mekong Delta, Nguyễn Tấn Lợi (a student from Nguyễn Đình Chiểu High School in Bến Tre) and teacher Trương Hữu Dũng successfully developed a freshwater filtration machine. This device can convert seawater into drinkable water in saline-affected areas, and it is especially useful for remote islands such as Trường Sa and Hoàng Sa.

3. Air Conditioner
Tạ Hoàng Bảo, a student from Khoái Châu High School in Hưng Yên, is the inventor of the 'Evaporative Cooling Tower System.' This invention took nearly a year of research and helped the high school student win first place in the mechanical engineering category at the 2016 National Science and Technology Competition.

4. Pushcart for Sanitation Workers
The pushcart designed for sanitation workers is an invention by Trương Thị Uyển My, a student from Tân Hồng High School in Đồng Tháp. This model does not use a combustion engine, making it fuel-free and noise-free. It is highly efficient for both sweeping and collecting trash, offering valuable support to sanitation workers.

5. Clean Vegetable Farming System
The clean vegetable farming system developed by a group of students from Hanoi gained significant attention when it was showcased at the 2016 Invention Day in November. This system is a machine designed to grow vegetables efficiently, ensuring they develop normally while remaining free from harmful toxins.

6. 3D Printing System
Another inventive model showcased at the 2016 Invention Day, the 3D printing system, has promising applications in the medical field. It offers valuable support for doctors and healthcare professionals in their medical procedures and tasks.

7. Electromagnetic Brake System
The electromagnetic brake system is an invention by Nguyễn Việt Trinh, an 11th-grade student from Krông Nô High School in Đắk Nông, designed to prevent brake failure on mountain roads. With this model, Việt Trinh earned third place in the provincial invention competition and third place in the 2016 National Youth and Children’s Creative Contest.

8. Helicopter
This is a homemade helicopter called 'Dream,' created by war veteran Nguyễn Bùi Hiển (58 years old, Bình Dương). The helicopter stands 2.4 meters tall, 8.6 meters long, with a 7.1-meter rotor span and a total weight of 390 kg. Driven by a passion for model aircraft, Nguyễn spent over 4 years researching and successfully assembling a helicopter capable of flying at 200 km/h, with a cost of nearly half a billion VND.

9. Aircraft Carrier Model Named After Võ Nguyên Giáp
The aircraft carrier model named after Võ Nguyên Giáp, made from cardboard by Nguyễn Chí Thanh (a 12th-grade student at Củ Chi District's Continuing Education Center), was one of the standout creations at the Traditional Camp organized by the Ho Chi Minh City Department of Education and Training. At just 17 years old, Thanh’s model captured not only his craftsmanship but also his passion for the nation’s islands and a deep commitment to national sovereignty.

10. Rainwater Harvesting Model in the Mekong Delta
The rainwater harvesting model in the Mekong Delta was developed by a group of 7 students from the Geology Department at the University of Science, Vietnam National University, Ho Chi Minh City. When it rains, water flows from the roof into gutters, collected at one or more points, and passed through a sediment filter. The water then undergoes mechanical filtration to remove suspended solids, providing artificial water replenishment for the region.

