Amazon has Master Lock 5900D Set Your Own Combination Portable Safe (Gunmetal Grey) on sale for $11.70. Shipping is free w/ Prime, or free on $25+ orders.
Features:
- Small safe is ideal for use as a travel safe or personal safe for protection & security from theft.
- Secure small safe to a fixed object with cable; portable safe is best used to protect smart phone, passports, cash, & credit cards.
- Set your own four digit combination portable safe; ear bud/charging cable access port to conveniently listen to music or charge devices while locked.
- Constructed with a shock absorbing foam, small lock box is designed to be water resistant.