You can use a digital or glass thermometer to take your temperature. The most comfortable options are to stick it under your arm or under your tongue. Consult a doctor if your temperature is at or above 103 degrees Fahrenheit.
There are many different types of thermometers you can find at stores. Digital thermometers are the most common, while mercury thermometers have been used the longest. You can also get liquid crystal thermometers that change colors with the help of leuco dyes.
Do you want to customize thermometers with a design? You can order them online by working with a promotional products company. They will add a design to your thermometers via screen printing or laser engraving, depending on what you choose.