Every beholder is different, and that's a good thing. How would we tell the good ones from the bad ones otherwise?
First off, how big is our beholder? Roll 2d6 to decide!
Rolled 2, 1 = 3 (2d6)
>>51915575
>>51915592
So our beholder is about 4 and a half feet wide. A little smaller than average, but that's fine. What's its skin color? Roll a d12
Rolled 8 (1d12)
>>51915615
Rolled 4 (1d12)
>>51915615
Roll table thread? Roll table thread!
>>51915650
Oooh, purple-blue skin. Very fabulous.
But what's the texture of their skin? Roll a d10 to find out!
>>51915673
/roll 1d10
Rolled 9 (1d10)
>>51915673
>>51915817
So their skin is pretty warty. Kind of gross, but we gave up on cuteness when we decided to make a beholder.
What color are its eyes? Roll a d10
Rolled 1 (1d10)
>>51915848
HOT
PINK
>>51915862
While not hot pink, they are red, which does go well with its purpley-blue skin
What shape are its irises? Roll a d20
Rolled 13 (1d20)
>>51915900
>>51915921
Its irises resemble a slit, like a cat or reptile.
How big is its central eye? Roll 2d6
Rolled 6, 4 = 10 (2d6)
>>51915986
>>51916042
So its main eye is 25% bigger than usual. How about its little eyes? Roll 2d6
Rolled 5, 4 = 9 (2d6)
>>51916102
dice
>>51916215
Little eyes are normal size, which makes them look even smaller in comparison to the large central eye.
What about the eyestalk texture and shape? Give me a d6 and a d4
Rolled 4 + 1 (1d4 + 1)
>>51916249
>>51916271
I fucked that one up.
>>51916287
That's fine, at least that makes his eyestalks thin and long. Give me a d6 for their texture
Rolled 4 (1d6)
>>51916337
Watching.
Since this is from Volo's guide I could continue in absence of OP.
>>51916692
It's eyestalk shape is ridged like an earthworm.
Now how about it's mouth shape and size? Give me a d6.
Rolled 3 (1d6)
>>51917970
>>51920734
It has a normal sized and shaped mouth.
What about it's teeth? What shape are it's teeth?
Roll me a d10.