Besides bonds and stocks, there are actually many other options you can invest in, and they might help you make even greater profits! Check out these 10 unique collectible items.
1. Paintings

Paintings as a form of fine art always manage to hold their value even during economic downturns. Try to invest in paintings of varying styles, and you might be able to strike gold with them in the future!
2. Sports Memorabilia

The price of sports memorabilia has risen rapidly over the years. Keep a lookout for rare and antique pieces such as a baseball from the 19th century, or you can predict the superstars of tomorrow and ask them to sign your items! You could rake in a large sum of money!
3. Comic Books

A comic book could be worth more than you think. In 2014, a Superman comic book was sold for an astounding $3.2M on eBay! If you've collected some comic books already, make sure they are kept in pristine condition. If not, it might be a good time to start collecting them now!
4. Wine

As we all know, wine gets better with age. When it ages well, it can be worth a huge fortune. Analysts have even claimed that some blue-chip wines are a better investment than stocks. Store some top vintage ones, and it's likely you'll make a large profit.
5. Coins

Coins in our age don't hold much value, but a single bronze Lincoln penny made before the early '90s can fetch up to $2M! Find a reliable platform such as the U.S. Mint to make your coin purchases.
6. Toys

Toys made in small quantities can become sought after in a couple of years. You can purchase some rare toys from antique stores and flea markets. Keep them in mint condition, and they'll help you make a great fortune!
7. Rare Books

First editions, autographed books, and popular classics are highly sought-after on the market. In case you didn't know, a first British edition of Harry Potter And The Philosopher's Stone was sold for a whopping $18,000 in 2007! Start purchasing some rare books at auction or from trusted book dealers, and chances are you will fetch an astounding sum of money!
8. Kitchenware

Don't rush to throw away your old and dusty kitchenware next time you clean your cupboard! Many pieces such as vintage plates, spoons, and forks are being snapped up by intrepid collectors. Go to eBay to get a sense of what your items are worth.
9. Rare Musical Instruments

The price of rare musical instruments is absolutely underestimated. For instance, an Antonio Stradivari-produced violin can be worth several million dollars! If you decide to invest in instruments, make sure to take the quality, history, and the manufacturer into consideration.
10. Classic Cars

Classic cars have always been relevant throughout the years. According to analysts, some of them even outperform stocks when it comes to investing. You won't regret making a purchase such as these cars that are very likely to increase in value!