I have just checked coupons. The lowest price I could get is $16.99 for 10inch LCD Drawing Board Cartoon Graphics Tablet (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is best price?
Frame material ABS frame, Name 10-inch LCD tablet, Writing times ≥100 /000 times, Battery CR2025 button battery, Display flexible LCD screen, Writing color colorful, Color pink / teal / blue
Latest price update (UTC time):
Banggood ($16.99)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… Is it a low price? Hmmm, price is higher than average (which is $13.42 right now), so better set price alert down below…
Link: Banggood product page
Price: $16.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG7b6af1, BG521056, BG589b2e, BG9626f1, BGc3a06c
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for 10inch LCD Drawing Board Cartoon Graphics Tablet is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).