I have just checked coupons. The lowest price I could get is $80.03 for 3D Holographic Projector Fan Wifi Bluetooth Audio 3D Advertising Display Lights (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
3D Holographic Projector Fan Support Wifi Bluetooth Audio 3D Advertising Display Lights Hologram Projector
Latest coupon and price update (UTC):
Banggood ($80.03)
Banggood warehouse is located in China. The question is – is it a good price? Hmmm, price is higher than average (which is $71.59 right now), so better set price alert down below… We have found one coupon for this product!
Link: Banggood product page
Price without coupon: $86.99
1. ($80.03): BGALL8
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG08c7e4, BGESJY8
(there’s a little possibility that old coupon will work)
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
Here is price history (for all/most countries) for 3D Holographic Projector Fan Wifi Bluetooth Audio 3D Advertising Display Lights.
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)).