Its a three parts - box, front part with logo and lights and battery holder.
Material - Generic PETG
For electronic parts :
1.DC-DC MT3608 Voltage Step Up Adjustable Boost Converter Module -
https://www.ebay.co.uk/itm/193578274836
2. 5V 1A USB Type C 18650 TP4056 Lithium Battery Charger Module Charging Board -
https://www.ebay.co.uk/itm/286101115663
3. 16mm SPST MINI Red Button On/Off Round Rocker Switch DC 3A/12V Or AC 3A/250V -
https://www.ebay.co.uk/itm/123180318381
4. 12VDC 5mm LED Bulb Pre wired Light Emitting Diode -
https://www.ebay.co.uk/itm/122137301280
5. 3.7 Volt Rechargeable NiMH Battery, 3000mAh High Power Rechargeable Button Top -
https://www.ebay.co.uk/itm/405381177587