Sure. If you don’t have a sister, “00 = sis” won’t work to well for you. And, of course, things that aren’t based on the major system consonants are interesting. Nelson Dellis suggested “Satan” for “66”, but 66 simply does not make me think of 666.
0-9 images that look like the numbers
0 pill
1 stick
2 swan
3 euro coin (looks like a backwards 3 to me)
4 sailboat
5 snake
6 ladel
7 boomerang/arrow
8 hourglass
9 balloon
00-99 major system, mostly.
00 sis
01 seed
02 sun
03 uncle sam
04 sewer
05 sole (in shoe)
06 sewage
07 james bond
08 safe
09 soap
10 toes
11 skis
12 dozen eggs
13 bad luck: upside down horseshoe, black cat, walking under a ladder
14 tar
15 doll
16 touche (fencing)
17 tack
18 tough (The Hulk)
19 tub
20 nose
21 blackjack
22 nun
23 numb (I think of someone in a dentist’s chair)
24 winery or nero
25 nail
26 nacho
27 nuke
28 knife
29 knob
30 moose
31 mat
32 moon
33 mummy
34 bill MaheR
35 mail
36 match
37 mic(rophone)
38 mafia or muffin or humvee
39 mop
40 rose
41 rat
42 hitchhiker’s guide to the galaxy green face
43 ram
44 roar
45 rail
46 roach
47 rock
48 ref
49 rib
50 lasso
51 light
52 line
53 lime
54 fishing lure
55 lolli (pop)
56 leech
57 lake
58 leaf
59 lap, labia, lab
60 shoes
61 shoot or shot
62 chain
63 chum
64 chair
65 jello or gel
66 judge
67 chick
68 chief
69 sex position
70 kiss
71 cat
72 cone
73 gum
74 al gore
75 coal
76 cash
77 cake
78 cave
79 cap
80 vase
81 vat
82 fan
83 foam
84 fairy
85 veil or vial
86 fish
87 fog
88 fief (a lord standing menacingly over his peasant farmers)
89 fob (keychain)
90 bus
91 pot
92 pen
93 bum
94 pear
95 bull
96 bush
97 buck
98 beef
99 pup(py)